Dr. Eric G. Johnson Profile

Dr. Eric G. Johnson

Professor of ECE at Clemson Univ

SPIE Involvement:

Conference Program Committee | Author

Publications (91)

Proceedings Article | 12 June 2023 Presentation + Paper

Using rapidly tunable photon orbital angular momentum to identify optical channels for remote sensing applications

Samuel Mellon, Robert Younts, Michael McBeth, Eric Johnson, J. Keith Miller, Mohamed Baghdady

Proceedings Volume 12537, 1253705 (2023) https://doi.org/10.1117/12.2663459

KEYWORDS: Remote sensing, Channel projecting optics, Angular momentum, Object detection, Diffraction, Semiconductor lasers, Calibration, Turbulence, Scattering, Feedback loops

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Proceedings Article | 8 March 2023 Presentation + Paper

Generation and detection of OAM-carrying beamlets for underwater optical systems using a HOBBIT system

J. Wiley, E. Robertson, K. Dai, J. Free, J. Miller, E. Johnson

Proceedings Volume 12399, 1239906 (2023) https://doi.org/10.1117/12.2655980

KEYWORDS: Structured light, Environmental sensing, Turbulence, Turbidity, Receivers, Gaussian beams, Cameras, Beam propagation method

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Proceedings Article | 20 December 2022 Presentation

3D propagation-invariant space-time wave packets

Murat Yessenov, Justin Free, Zhaozhong Chen, Eric Johnson, Martin P. Lavery, Ayman Abouraddy

Proceedings Volume 12318, 123180N (2022) https://doi.org/10.1117/12.2645255

KEYWORDS: Wave propagation, Volume Bragg gratings, Velocity measurements, Spatial light modulators, Spatial frequencies, Light wave propagation, Free space, Bessel beams, Beam propagation method

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Proceedings Article | 30 September 2022 Poster + Paper

Generation of orbital angular momentum in a C-band laser

Samuel Mellon, Robert Younts, Eric Johnson

Proceedings Volume 12237, 122370K (2022) https://doi.org/10.1117/12.2632026

KEYWORDS: Near field optics, Gaussian beams, Laser applications, Free space optics, Bessel beams, Beam splitters, Fiber lasers

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Proceedings Article | 9 March 2022 Presentation

Demonstration of 3D space-time wave packets

Murat Yessenov, Zhaozhong Chen, Justin Free, Eric Johnson, Martin P. Lavery, Ayman Abouraddy

Proceedings Volume PC12017, PC1201703 (2022) https://doi.org/10.1117/12.2608737

KEYWORDS: Wave propagation, Volume Bragg gratings, Velocity measurements, Spatial light modulators, Spatial frequencies, Light wave propagation, Free space, Bessel beams, Beam propagation method

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Proceedings Article | 24 February 2020 Paper

Higher-order Bessel beams integrated with time (HOBBIT) for dynamic structured light control

Eric Johnson, J. Keith Miller, Richard Watkins, Kaitlyn Morgan, Wenzhe Li, Kunjian Dai, Caitie O'Donnell, Graham White

Proceedings Volume 11297, 112970T (2020) https://doi.org/10.1117/12.2551312

KEYWORDS: Turbulence, Wavefronts, Gaussian beams, Polarization, Control systems, Nonlinear dynamics, Structured light, Optical simulations, Atmospheric propagation, Harmonic generation

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Proceedings Article | 20 February 2018 Presentation + Paper

Growth of rare-earth doped single crystal yttrium aluminum garnet fibers

Subhabrata Bera, Craig Nie, James Harrington, Long Cheng, Stephen Rand, Yuan Li, Eric Johnson

Proceedings Volume 10511, 105111P (2018) https://doi.org/10.1117/12.2292275

KEYWORDS: Optical fibers, YAG lasers, Laser crystals, Holmium, Sol-gels, Fiber lasers, High power lasers, Neodymium

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Proceedings Article | 29 September 2017 Presentation

Necklace beams in engineered nonlinear media (Conference Presentation)

Natalia Litchinitser, Jingbo Sun, Salih Silahli, Wiktor Walasik, Eric Johnson

Proceedings Volume 10346, 103461U (2017) https://doi.org/10.1117/12.2275602

KEYWORDS: Gaussian beams, Scattering media, Plasmonics, Optical properties, Chemical reactions, Nanoparticles, Optical vortices, Spiral phase plates, Optical tweezers, Optical imaging

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Proceedings Article | 7 June 2017 Presentation

Creation and exploitation of orbital angular momentum for maritime environments (Conference Presentation)

Eric Johnson, Jerome Miller, Richard Watkins, Indumathi Raghu Srimathi, Joshua Baghdady, Wenzhe Li, Yuan Li

Proceedings Volume 10186, 1018602 (2017) https://doi.org/10.1117/12.2266547

KEYWORDS: Lithium, Environmental monitoring, Environmental sensing, Current controlled current source

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Proceedings Article | 22 May 2017 Presentation + Paper

The detection of objects in a turbid underwater medium using orbital angular momentum (OAM)

Brandon Cochenour, Lila Rodgers, Alan Laux, Linda Mullen, Kaitlyn Morgan, Jerome Miller, Eric Johnson

Proceedings Volume 10186, 1018603 (2017) https://doi.org/10.1117/12.2264626

KEYWORDS: Scattering, Backscatter, Light scattering, Laser scattering, Ocean optics, Environmental sensing, Spiral phase plates, Optical vortices, Charge-coupled devices, Signal attenuation, Target detection, Receivers, LIDAR

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Proceedings Article | 21 April 2017 Presentation

Pulsed amplification of 2 µm composite vortex beams (Conference Presentation)

Keith Miller, Yuan Li, Wenzhe Li, Ramesh Shori, Eric Johnson

Proceedings Volume 10082, 1008205 (2017) https://doi.org/10.1117/12.2256595

KEYWORDS: Amplifiers, Lithium, Solid state lasers, Laser applications, Current controlled current source, Laser beam propagation, Composites, Sensing systems

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Proceedings Article | 19 April 2017 Presentation

Silicon oxynitride-on-glass waveguide array refractometer with wide sensing range and integrated read-out (Conference Presentation)

Jaime Viegas, Mona Mayeh, Pradeep Srinivasan, Eric Johnson, Paulo V. Marques, Faramarz Farahi

Proceedings Volume 10106, 101060W (2017) https://doi.org/10.1117/12.2254451

KEYWORDS: Detection and tracking algorithms, Sensors, Waveguides, Silicon, Refractive index, Cameras, Cladding, Spectrometers, Optical pattern recognition, Calibration

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Proceedings Article | 17 May 2016 Paper

Blue-light digital communication in underwater environments utilizing orbital angular momentum

Joshua Baghdady, Keith Miller, Sean Osler, Kaitlyn Morgan, Wenzhe Li, Eric Johnson, Brandon Cochenour

Proceedings Volume 9827, 98270G (2016) https://doi.org/10.1117/12.2229796

KEYWORDS: Ocean optics, Optical communications, Data communications, Signal attenuation, Beam propagation method, Radio propagation, Binary data, Beam splitters, Avalanche photodetectors, Semiconductor lasers

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Proceedings Article | 17 May 2016 Paper

Dynamic control of coherent orbital-angular-momentum beams in turbid environments

K. Morgan, J. Miller, B. Cochenour, E. Johnson

Proceedings Volume 9827, 982706 (2016) https://doi.org/10.1117/12.2229794

KEYWORDS: Phase shift keying, Amplitude modulation, Signal attenuation, Scattering, Laser scattering, Spiral phase plates, Modulation, Phase modulation, Radio propagation, Optical communications

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Proceedings Article | 6 July 2015 Paper

Spatial multiplexing for blue lasers for undersea communications

Joshua Baghdady, Matthew Byrd, Wenzhe Li, Kaitlyn Morgan, Aaron Pung, Keith Miller, Eric Johnson

Proceedings Volume 9459, 945905 (2015) https://doi.org/10.1117/12.2183479

KEYWORDS: Beam propagation method, Multiplexing, Cameras, Space division multiplexing, Beam splitters, Laser scattering, Scattering, Laser communications, Wave propagation, Optical communications

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Proceedings Article | 13 March 2015 Paper

Design and fabrication of a resonant mirrors for locking blue laser diodes

Matthew Byrd, Joshua Baghdady, Aaron Pung, Eric Johnson, Kyu Lee, Robert Magnusson, Paul Binun, Kyle McCormick

Proceedings Volume 9374, 93740Z (2015) https://doi.org/10.1117/12.2079987

KEYWORDS: Semiconductor lasers, Gallium nitride, Reflectivity, Coating, Polarization, Silica, Diodes, Etching, Tolerancing, Semiconducting wafers

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Proceedings Article | 13 March 2015 Paper

Design and fabrication of diffractive optics for orbital angular momentum space division multiplexing

Kaitlyn Morgan, Indumathi Raghu, Eric Johnson

Proceedings Volume 9374, 93740Y (2015) https://doi.org/10.1117/12.2079944

KEYWORDS: Beam splitters, Telecommunications, Optical components, Etching, Optical design, Diffractive optical elements, Space division multiplexing, Silica, Gaussian beams, Semiconducting wafers

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Proceedings Article | 20 February 2015 Paper

Investigation of the amplification properties of Ho:YAG single crystal fiber

Yuan Li, Zeyu Zhang, Ian Buckley, Jerome Miller, Eric Johnson, Craig Nie, James Harrington, Ramesh Shori

Proceedings Volume 9342, 934205 (2015) https://doi.org/10.1117/12.2086858

KEYWORDS: Beam propagation method, Crystals, Optical simulations, Wave propagation, Beam shaping, Holmium, Waveguides, Laser crystals, Crystallography, 3D modeling

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Proceedings Article | 7 March 2014 Paper

Single-crystal rare-earth doped YAG fiber lasers grown by the laser-heated pedestal growth technique

Craig Nie, James Harrington, Yuan Li, Eric Johnson, Elizabeth Cloos, Stephen Rand, Pedro Machado, Ramesh Shori

Proceedings Volume 8961, 896126 (2014) https://doi.org/10.1117/12.2041769

KEYWORDS: YAG lasers, Er:YAG lasers, Fiber lasers, Erbium, Glasses, Cladding, Erbium lasers, Near infrared, Holmium, Crystals

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Proceedings Article | 14 November 2013 Paper

High-power laser testing of 3D meta-optics

A. Pung, I. Raghu Srimathi, Y. Li, E. Johnson, M. Shinn, K. J. Lee, R. Magnusson, J. Talghader, L. Taylor, L. Shah, M. Richardson

Proceedings Volume 8885, 88850K (2013) https://doi.org/10.1117/12.2032410

KEYWORDS: Reflectivity, Waveguides, Photoresist materials, High power lasers, Silica, Etching, Optical components, Polarization, Silicon, Atomic layer deposition

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Proceedings Article | 1 April 2013 Paper

Resonant optical devices for IR lasers

Eric Johnson, Yuan Li, Indumathi Raghu Srimathi, Ryan Woodward, Menelaos Poutous, Aaron Pung, Martin Richardson, Lawrence Shah, Ramesh Shori, Robert Magnusson

Proceedings Volume 8599, 85991G (2013) https://doi.org/10.1117/12.2012525

KEYWORDS: Mid-IR, Fiber lasers, Mirrors, Optical filters, Optical components, Infrared lasers, Laser systems engineering, Reflectivity, Quartz, Polarization

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SPIE Journal Paper | 22 November 2012

Photoresist surface roughness characterization in additive lithography processes for fabrication of phase-only optical vortices

Menelaos Poutous, Zahra Hosseinimakarem, Eric Johnson

JM3, Vol. 11, Issue 4, 043009, (November 2012) https://doi.org/10.1117/12.10.1117/1.JMM.11.4.043009

KEYWORDS: Surface roughness, Photoresist materials, Spiral phase plates, Lithography, Additive manufacturing, Optical components, Photoresist developing, Optical vortices, Photoresist processing, Ultraviolet radiation

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SPIE Journal Paper | 9 July 2012

Design and experimental study of the controlled two-dimensional-intensity profile of the output beam from a broad-area laser diode using grating outcouplers

Viktor Smolski, Oleg Smolski, Eric Browy, Eric Johnson, Zane Shellenbarger

OE, Vol. 51, Issue 7, 074204, (July 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.7.074204

KEYWORDS: Optical design, Etching, Semiconductor lasers, Computer aided design, Near field optics, Wave propagation, Waveguides, Beam shaping, Beam splitters, Optical engineering

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Proceedings Article | 7 May 2012 Paper

Integrated 100 W thulium fiber MOPA system

Lawrence Shah, R. Andrew Sims, Pankaj Kadwani, Christina C. Willis, Joshua Bradford, Zachary Roth, Aaron Pung, Menelous Poutous, Eric Johnson, Martin Richardson

Proceedings Volume 8381, 83810Z (2012) https://doi.org/10.1117/12.925411

KEYWORDS: Phase modulation, Oscillators, Fiber lasers, Fiber amplifiers, Optical amplifiers, Polarization, Optical isolators, Thulium, System integration, Amplifiers

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Proceedings Article | 16 February 2012 Paper

Integrated 100-W polarized narrow linewidth thulium fiber MOPA system

Lawrence Shah, R. Andrew Sims, Pankaj Kadwani, Christina C. Willis, Joshua Bradford, Zachary Roth, Aaron Pung, Menelaos Poutous, Eric Johnson, Martin Richardson

Proceedings Volume 8237, 82371M (2012) https://doi.org/10.1117/12.909292

KEYWORDS: Oscillators, Phase modulation, Optical amplifiers, Polarization, Diodes, Amplifiers, Thulium, Fiber lasers, Fiber amplifiers, High power fiber amplifiers

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Proceedings Article | 15 February 2012 Paper

Photoresist roughness characterization in additive lithography processes for the fabrication of phase-only optical vortices

Zahra Hosseinimakarem, Menelaos Poutous, Eric Johnson

Proceedings Volume 8249, 82491M (2012) https://doi.org/10.1117/12.909719

KEYWORDS: Surface roughness, Spiral phase plates, Photoresist materials, Additive manufacturing, Lithography, Photoresist developing, Radium, Optical vortices, Optical components, Picture Archiving and Communication System

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Proceedings Article | 8 February 2012 Paper

Fabrication of optically monolithic, low-index guided mode resonance filters

Aaron Pung, Menelaos Poutous, Raymond Rumpf, Zachary Roth, Eric Johnson

Proceedings Volume 8249, 82490F (2012) https://doi.org/10.1117/12.908582

KEYWORDS: Waveguides, Polarization, Etching, Plasma enhanced chemical vapor deposition, Silica, Deposition processes, Photoresist materials, Optical filtering, Dielectric polarization, Plasma etching

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Proceedings Article | 8 February 2012 Paper

Spatially and spectrally varying guided mode resonant filter by modifying the waveguide layer

Zachary Roth, Menelaos Poutous, Eric Johnson

Proceedings Volume 8249, 82490H (2012) https://doi.org/10.1117/12.908470

KEYWORDS: Waveguides, Silicon, Lithography, Optical filters, Reflectivity, Dielectrics, Neodymium, Waveguide modes, Etching, Diffraction

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Proceedings Article | 8 February 2012 Paper

Monolithic fabrication and performance control of multilayered, polarization sensitive, guided-mode resonance filters

Menelaos Poutous, Indumathi Raghu Srimathi, Eric Johnson

Proceedings Volume 8249, 82490D (2012) https://doi.org/10.1117/12.906854

KEYWORDS: Waveguides, Silicon, Oxides, Control systems, Optical filtering, Dielectrics, Thin films, Etching, Fabrication, Dielectric polarization

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Proceedings Article | 2 February 2012 Paper

Design and experimental study on the grating outcouplers providing the controlled 2D-intensity profile of the output beam from a broad area laser diode

Oleg Smolski, Viktor Smolski, Eric Browy, Eric Johnson, Zane Shellenbarger

Proceedings Volume 8267, 826712 (2012) https://doi.org/10.1117/12.910154

KEYWORDS: Optical design, Etching, Near field optics, Waveguides, Wave propagation, Semiconductor lasers, Beam shaping, Broad area laser diodes, Optical fabrication equipment, Near field

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Proceedings Article | 22 February 2011 Paper

Blue light source based on spectrally stabilized external dual grating reflector coupled surface emitter array

Yigit Yilmaz, Oleg Smolski, Pradeep Srinivasan, Viktor Smolski, Eric Johnson

Proceedings Volume 7919, 79190C (2011) https://doi.org/10.1117/12.875060

KEYWORDS: Second-harmonic generation, Semiconductor lasers, Diodes, Reflectors, Crystals, Nonlinear crystals, Neodymium, Laser stabilization, Silicon, Light sources

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Proceedings Article | 14 February 2011 Paper

Fabrication of guided mode resonance filters on conformal surfaces

A. Cannistra, M. Poutous, E. Johnson, T. Suleski

Proceedings Volume 7927, 79270Y (2011) https://doi.org/10.1117/12.876280

KEYWORDS: Optical filters, Semiconducting wafers, Fabrication, Dielectrics, Lithography, Composites, Dielectric filters, Silica, Polymers, Sensors

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Proceedings Article | 11 February 2011 Paper

Fabrication of singulated micro-retro-reflectors for textured surfaces

Menelaos Poutous, Michael Maston, Stephen Leibholtz, Eric Johnson

Proceedings Volume 7927, 79270J (2011) https://doi.org/10.1117/12.875352

KEYWORDS: Silicon, Semiconducting wafers, Coating, Photography, Retroreflectors, Gold, Chemical elements, Infrared cameras, Scanning electron microscopy, Thin film coatings

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Proceedings Article | 8 February 2011 Paper

Advanced fabrication methods for 3D meta-optics

E. Johnson, M. Poutous, Z. Roth, P. Srinivasan, A. Pung, Y. Yilmaz

Proceedings Volume 7927, 792706 (2011) https://doi.org/10.1117/12.877173

KEYWORDS: Photomasks, Analog electronics, Lithography, Critical dimension metrology, Optical filters, Optical components, Semiconducting wafers, Photoresist materials, Image processing, Diffraction gratings

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Proceedings Article | 17 February 2010 Paper

Spectral beam combining of thulium fiber laser systems

R. Andrew Sims, Christina C. Willis, Pankaj Kadwani, Timothy McComb, Lawrence Shah, Vikas Sudesh, Zachary Roth, Menelaos Poutous, Eric Johnson, Martin Richardson

Proceedings Volume 7580, 75801Q (2010) https://doi.org/10.1117/12.842500

KEYWORDS: Fiber lasers, Diffraction gratings, Oscillators, Laser systems engineering, Fiber amplifiers, Optical amplifiers, YAG lasers, Thulium, Silica, Metals

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Proceedings Article | 17 February 2010 Paper

Spectral narrowing and stabilization of thulium fiber lasers using guided-mode resonance filters

R. Sims, Tanya Dax, Zachary Roth, Timothy McComb, Lawrence Shah, Vikas Sudesh, Menelaos Poutous, Eric Johnson, Martin Richardson

Proceedings Volume 7580, 75800F (2010) https://doi.org/10.1117/12.842474

KEYWORDS: Fiber lasers, Oscillators, Thulium, Reflectivity, Optical filtering, Diffraction gratings, Dielectric polarization, Polarization, YAG lasers, Laser stabilization

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SPIE Journal Paper | 1 November 2009 Open Access

Micro-optical spatial and spectral elements

Pradeep Srinivasan, Yigit Yilmaz, Raymond Rumpf, Eric Johnson

OE, Vol. 48, Issue 11, 110501, (November 2009) https://doi.org/10.1117/12.10.1117/1.3258651

KEYWORDS: Optical filters, Silicon, Oxides, Photonic crystals, Image filtering, Chemical elements, Spatial filters, Interference filters, Illumination engineering, Etching

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Proceedings Article | 21 August 2009 Paper

Micro optical spatial and spectral elements (MOSSE)

Pradeep Srinivasan, Yigit Yilmaz, Eric Johnson

Proceedings Volume 7420, 74200G (2009) https://doi.org/10.1117/12.826060

KEYWORDS: Silicon, Oxides, Photoresist materials, Optical filters, Semiconducting wafers, Chemical elements, Etching, Plasma enhanced chemical vapor deposition, Optical components, Plasma

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SPIE Journal Paper | 1 March 2009

Photonic crystal filters for multi-band optical filtering on a monolithic substrate

Gary Shambat, Mark Mirotznik, Gary Euliss, Viktor Smolski, Eric Johnson, Ravindra Athale

JNP, Vol. 3, Issue 01, 031506, (March 2009) https://doi.org/10.1117/12.10.1117/1.3110223

KEYWORDS: Optical filters, Dielectrics, Dielectric filters, Photonic crystals, Eye, Refractive index, Silicon, Oximetry, Digital filtering, Electromagnetism

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Proceedings Article | 28 February 2009 Paper

Narrow linewidth tunable CW thulium fiber lasers with VBG and GMRF stabilization

Robert Sims, Tim McComb, Vikas Sudesh, Matthew Reichert, Martin Richardson, Menelaos Poutous, Zachary Roth, Eric Johnson

Proceedings Volume 7193, 71930U (2009) https://doi.org/10.1117/12.815317

KEYWORDS: Fiber lasers, Mirrors, Reflectivity, Thulium, YAG lasers, Fiber Bragg gratings, Laser damage threshold, Monochromators, Laser applications, Tunable lasers

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Proceedings Article | 28 February 2009 Paper

Compact blue light sources based on grating coupled surface emitting lasers

Oleg Smolski, Yigit Yilmaz, Viktor Smolski, Eric Johnson

Proceedings Volume 7193, 71931E (2009) https://doi.org/10.1117/12.816387

KEYWORDS: Second-harmonic generation, Molybdenum, Nonlinear crystals, Crystals, Semiconductor lasers, Near field optics, Light sources, Harmonic generation, Optical amplifiers, Ferroelectric materials

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Proceedings Article | 24 February 2009 Paper

Correlation of fabrication tolerances with the performance of guided-mode-resonance micro-optical components

Menelaos Poutous, Zach Roth, Kaia Buhl, Aaron Pung, Raymond Rumpf, Eric Johnson

Proceedings Volume 7205, 72050Y (2009) https://doi.org/10.1117/12.814514

KEYWORDS: Etching, Reflectivity, Mirrors, Device simulation, Oxides, Lithography, Optical lithography, Critical dimension metrology, Tolerancing, Waveguides

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SPIE Journal Paper | 1 January 2009

Novel method for the fabrication of spatially variant structures

Pradeep Srinivasan, Zachary Roth, Menelaos Poutous, Eric Johnson

JM3, Vol. 8, Issue 01, 013010, (January 2009) https://doi.org/10.1117/12.10.1117/1.3066798

KEYWORDS: Photoresist materials, Analog electronics, Modulation, Photoresist developing, Photomasks, Refractive index, Optical components, Overlay metrology, Scanning electron microscopy, Electron beam lithography

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Proceedings Article | 10 September 2008 Paper

Reconfigurable photonic crystal filters for multi-band optical filtering on a monolithic substrate

Gary Shambat, Ravindra Athale, Gary Euliss, Mark Mirotznik, Eric Johnson, Viktor Smolski

Proceedings Volume 7041, 70410P (2008) https://doi.org/10.1117/12.794239

KEYWORDS: Optical filters, Dielectric filters, Dielectrics, Photonic crystals, RGB color model, Eye, Refractive index, Silica, Oximetry, Absorption filters

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Proceedings Article | 11 August 2008 Paper

Biologically inspired optics: analog semiconductor model of the beetle exoskeleton

Kaia Buhl, Zachary Roth, Pradeep Srinivasan, Raymond Rumpf, Eric Johnson

Proceedings Volume 7057, 705707 (2008) https://doi.org/10.1117/12.794313

KEYWORDS: Multilayers, Reflection, Analog electronics, Silica, Photoresist materials, Polarization, Biomedical optics, Optical properties, Photomasks, Optical semiconductors

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Proceedings Article | 19 February 2008 Paper

Fabrication of variable effective refractive index artificial media

Pradeep Srinivasan, Zachary Roth, Eric Johnson

Proceedings Volume 6883, 68830J (2008) https://doi.org/10.1117/12.764188

KEYWORDS: Refractive index, Analog electronics, Photoresist materials, Polarization, Fabrication, Photomasks, Optical components, Etching, Prisms, Lithography

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Proceedings Article | 6 February 2008 Paper

Microtransfer molding of SU-8 micro-optics

A. Cannistra, P. Srinivasan, E. Johnson, T. Suleski

Proceedings Volume 6883, 68830C (2008) https://doi.org/10.1117/12.769694

KEYWORDS: Semiconducting wafers, Micro optics, Lithography, Polymers, Etching, Optical lithography, Microlens array, Silicon, Resistance, Microlens

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Proceedings Article | 29 January 2008 Paper

Master oscillator power amplifier 3D assemblies based on grating coupled laser diodes

Oleg Smolski, Jason O'Daniel, Eric Johnson, Paul Leisher, Paul Crump

Proceedings Volume 6909, 690919 (2008) https://doi.org/10.1117/12.763094

KEYWORDS: Molybdenum, Optical amplifiers, Semiconductor lasers, Oscillators, Optical design, Integrated optics, Reflectors, High power fiber amplifiers, Semiconductor optical amplifiers, Near field optics

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Proceedings Article | 7 March 2007 Paper

Three-dimensional diffractive micro- and nano-optical elements fabricated by electron-beam lithography

Ivan Divliansky, Eric Johnson

Proceedings Volume 6462, 64621B (2007) https://doi.org/10.1117/12.700999

KEYWORDS: Electron beams, Lithography, Polymers, Diffraction gratings, Analog electronics, Thermal effects, Nanolithography, Scanning electron microscopy, Polymethylmethacrylate, Electron beam lithography

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Proceedings Article | 7 March 2007 Paper

Simplified fabrication process of 3D photonic crystal optical transmission filter

A. Mehta, Raymond Rumpf, Zachary Roth, Eric Johnson

Proceedings Volume 6462, 64621D (2007) https://doi.org/10.1117/12.716335

KEYWORDS: Dielectric filters, Dielectrics, Optical filters, Transmittance, Etching, Semiconducting wafers, Digital filtering, Photonic crystals, Deposition processes, Multilayers

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Proceedings Article | 22 July 2006 Paper

2mm catheter design for endoscopic optical coherence tomography

Kye-Sung Lee, Chuck Koehler, Eric Johnson, Eric Teuma, Olusegun Ilegbusi, Marco Costa, Huikai Xie, Jannick Rolland

Proceedings Volume 6342, 63420F (2006) https://doi.org/10.1117/12.692203

KEYWORDS: Axicons, Optical coherence tomography, Image resolution, Optical design, Endoscopy, Collimation, Lens design, Bessel beams, Interferometers, Spherical lenses

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SPIE Journal Paper | 1 July 2006

Selective excitation of the LP₁₁ mode in step index fiber using a phase mask

Waleed Mohammed, Mahesh Pitchumani, Alok Mehta, Eric Johnson

OE, Vol. 45, Issue 07, 074602, (July 2006) https://doi.org/10.1117/12.10.1117/1.2219425

KEYWORDS: Chemical elements, Step index fibers, Optical engineering, Single mode fibers, Phase shift keying, Modulation, Cladding, Refractive index, Gaussian beams, Phase matching

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Proceedings Article | 20 February 2006 Paper

Fourier domain optical coherence tomography with an 800-μm diameter axicon lens for long-depth-range probing

Kye-Sung Lee, Chuck Koehler, Eric Johnson, Jannick Rolland

Proceedings Volume 6079, 607919 (2006) https://doi.org/10.1117/12.649173

KEYWORDS: Axicons, Optical coherence tomography, Image resolution, Spherical lenses, Collimation, Silica, Semiconducting wafers, Interferometers, Photonics, Biomedical optics

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Proceedings Article | 23 January 2006 Paper

Modeling the fabrication of nano-optical structures

Raymond Rumpf, Pradeep Srinivasan, Eric Johnson

Proceedings Volume 6110, 611004 (2006) https://doi.org/10.1117/12.652604

KEYWORDS: Photoresist materials, Photonic crystals, 3D modeling, Near field optics, Process modeling, Absorption, Near field, Nanophotonics, Polarization, Physics

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Proceedings Article | 23 January 2006 Paper

Fabrication of dual grating reflectors for high-power laser diodes

Jason O'Daniel, Oleg Smolski, Eric Johnson

Proceedings Volume 6110, 61100O (2006) https://doi.org/10.1117/12.659900

KEYWORDS: Diffraction gratings, Semiconductor lasers, Tolerancing, Reflectors, Diffraction, Etching, Waveguides, Refractive index, Teeth, High power lasers

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Proceedings Article | 23 January 2006 Paper

Fabrication of 3D photonic crystals by two-step dry etching of layered media

Pradeep Srinivasan, Raymond Rumpf, Eric Johnson

Proceedings Volume 6110, 611006 (2006) https://doi.org/10.1117/12.646461

KEYWORDS: Photonic crystals, Etching, Gallium arsenide, Plasma, Oxides, Aluminum, Chemistry, Crystals, Photomasks, Dry etching

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SPIE Journal Paper | 1 October 2005

Refractive micro-optics fabrication with a 1-D binary phase grating mask applicable to MOEMS processing

Jinwon Sung, Heidi Hockel, Jeremiah Brown, Eric Johnson

JM3, Vol. 4, Issue 04, 041603, (October 2005) https://doi.org/10.1117/12.10.1117/1.2110226

KEYWORDS: Photomasks, Binary data, Analog electronics, Optical design, Microlens, Photoresist materials, Micro optics, Diffraction gratings, Semiconducting wafers, Transmittance

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Proceedings Article | 24 May 2005 Paper

Hybrid modelocking of external cavity with grating-coupled surface emitting laser

Shinwook Lee, Kyungbum Kim, Laurent Vaissie, Oleg Smolski, Eric Johnson, Peter Delfyett

Proceedings Volume 5814, (2005) https://doi.org/10.1117/12.607113

KEYWORDS: Mode locking, Pulsed laser operation, Laser optics, Spectrum analysis, Oscillators, Photonics, Semiconductor lasers, Dispersion, Optical filters, Autoregressive models

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Proceedings Article | 22 January 2005 Paper

Polarization converting element for minimizing the losses in cylindrical hollow waveguides

Waleed Mohammed, Mahesh Pitchumani, Jeremiah Brown, Eric Johnson

Proceedings Volume 5720, (2005) https://doi.org/10.1117/12.593226

KEYWORDS: Polarization, Hollow waveguides, Waveguides, Dielectric polarization, Optical components, Silver, Gallium arsenide, Optical design, Crystals, Etching

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Proceedings Article | 22 January 2005 Paper

Improved fabrication accuracy of Bragg gratings

Jeremiah Brown, Alok Mehta, Heidi Hockel, Eric Johnson

Proceedings Volume 5720, (2005) https://doi.org/10.1117/12.594382

KEYWORDS: Waveguides, Fiber Bragg gratings, Reflectivity, Data modeling, Dispersion, Semiconducting wafers, Polymers, Cladding, Polymer multimode waveguides, Silicon

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Proceedings Article | 22 January 2005 Paper

Modeling the formation of photonic crystals by holographic lithography

Raymond Rumpf, Eric Johnson

Proceedings Volume 5720, (2005) https://doi.org/10.1117/12.601186

KEYWORDS: Photonic crystals, Photoresist materials, Holography, Lithography, Absorption, Crystals, Polarization, 3D modeling, Diffusion, Physics

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Proceedings Article | 22 January 2005 Paper

Design and fabrication of trihedral corner-cube arrays using analog exposure based on phase masks

Heidi Hockel, Ricardo Martins, Jinwon Sung, Eric Johnson

Proceedings Volume 5720, (2005) https://doi.org/10.1117/12.591996

KEYWORDS: Photomasks, Etching, Analog electronics, Semiconducting wafers, Retroreflectors, Optical design, Metals, Silica, Micro optics, Fabrication

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Proceedings Article | 10 June 2004 Paper

Hollow waveguide delivery of ultrashort pulses for tissue ablation

Michael Nguyen, Bryan Irwin, Russell Higbee, Waleed Mohammed, Eric Johnson, Kenneth Bartels, William Warren, Kenneth Church

Proceedings Volume 5317, (2004) https://doi.org/10.1117/12.529154

KEYWORDS: Waveguides, Tissues, Ultrafast phenomena, Hollow waveguides, Scanning electron microscopy, Silica, Silver, Coating, Liver, Femtosecond phenomena

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Proceedings Article | 24 January 2004 Paper

Microphotonic systems utilizing SU-8

Raymond Rumpf, Eric Johnson

Proceedings Volume 5346, (2004) https://doi.org/10.1117/12.533352

KEYWORDS: Photonic crystals, Crystals, Optical alignment, Lithography, Absorption, Waveguides, Diffraction, 3D modeling, Systems modeling, Optical fibers

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Proceedings Article | 29 December 2003 Paper

Analog micro-optics fabrication by use of a binary phase grating mask

Jinwon Sung, Mahesh Pitchumani, Jeremiah Brown, Heidi Hockel, Eric Johnson

Proceedings Volume 5347, (2003) https://doi.org/10.1117/12.522221

KEYWORDS: Photomasks, Analog electronics, Binary data, Micro optics, Semiconducting wafers, Diffraction gratings, Reticles, Diffraction, Optical design, Wafer-level optics

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Proceedings Article | 29 December 2003 Paper

Fabrication of passively aligned micro-optics using focused ion beam

Waleed Mohammed, Eric Johnson

Proceedings Volume 5347, (2003) https://doi.org/10.1117/12.522067

KEYWORDS: Mirrors, Ion beams, Ions, Optical components, Spherical lenses, Micro optics, Imaging systems, Silicon, Prototyping, Fabrication

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Proceedings Article | 29 December 2003 Paper

Presculpting of photoresists using additive lithography

Mahesh Pitchumani, Waleed Mohammed, Heidi Hockel, Eric Johnson

Proceedings Volume 5347, (2003) https://doi.org/10.1117/12.538385

KEYWORDS: Additive manufacturing, Photoresist materials, Lithography, Liquids, Photomasks, Micro optics, Beam shaping, Chemical elements, Optical components, Solids

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Proceedings Article | 10 November 2003 Paper

Integrated fiber optic displacement sensor based on multimode interference

Alok Mehta, Waleed Mohammed, Eric Johnson

Proceedings Volume 5177, (2003) https://doi.org/10.1117/12.511124

KEYWORDS: Multimode fibers, Sensors, Mirrors, Fiber optics sensors, Single mode fibers, Multimode interference devices, Signal detection, Wave propagation, Fiber optics, Calibration

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SPIE Journal Paper | 1 August 2003

Hybrid mode calculations for novel photonic crystal fibers

Waleed Mohammed, Laurent Vaissié, Eric Johnson

OE, Vol. 42, Issue 08, (August 2003) https://doi.org/10.1117/12.10.1117/1.1589758

KEYWORDS: Dispersion, Refractive index, Photonic crystal fibers, Cladding, Optical fibers, Light scattering, Scattering, Magnetism, Silica, Photonic crystals

Proceedings Article | 17 January 2003 Paper

Additive lithography for refractive micro-optics

Mahesh Pitchumani, Heidi Hockel, Jeremiah Brown, Waleed Mohammed, Eric Johnson

Proceedings Volume 4984, (2003) https://doi.org/10.1117/12.477839

KEYWORDS: Lithography, Additive manufacturing, Reticles, Photomasks, Micro optics, Lenses, Photoresist materials, Semiconducting wafers, Etching, Optical alignment

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Proceedings Article | 17 January 2003 Paper

Nanofabrication of integrated diffractive optical elements

Laurent Vaissie, Waleed Mohammed, Eric Johnson

Proceedings Volume 4984, (2003) https://doi.org/10.1117/12.477837

KEYWORDS: Diffraction gratings, Semiconductor lasers, Ion beams, Electron beam lithography, Beam shaping, Diodes, Polymethylmethacrylate, Etching, Nanofabrication, Diffractive optical elements

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SPIE Journal Paper | 1 August 2002

Selective mode excitation by non-axial evanescent coupling for bandwidth enhancement of multimode fiber links

Laurent Vaissie, Eric Johnson

OE, Vol. 41, Issue 08, (August 2002) https://doi.org/10.1117/12.10.1117/1.1488607

KEYWORDS: Polishing, Optical fibers, Beam propagation method, Multimode fibers, Single mode fibers, Index matching antireflective coatings, Digital micromirror devices, Cladding, Local area networks, Optical simulations

Proceedings Article | 13 November 2001 Paper

Micro-optics design, fabrication, and integration for fiber optic devices

Eric Johnson, Laurent Vaissie, Waleed Mohammed, Jinwon Sung, Mahesh Pitchumani

Proceedings Volume 4437, (2001) https://doi.org/10.1117/12.448153

KEYWORDS: Micro optics, Optical amplifiers, Graded index fibers, Optical components, Optical filters, Wave propagation, Reflectivity, Fiber optics, Waveguides, Polishing

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Proceedings Article | 16 April 2001 Paper

Optimization of two-dimensional photonic bandgap structures

Waleed Mohammed, Eric Johnson, Laurent Vaissie

Proceedings Volume 4291, (2001) https://doi.org/10.1117/12.424839

KEYWORDS: Photonic crystals, Wavelength division multiplexing, Waveguides, Optimization (mathematics), Genetic algorithms, Light scattering, Scattering, Light wave propagation, Geometrical optics, Inverse optics

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Proceedings Article | 16 April 2001 Paper

Incorporation of diffractive structures on side-polished fiber arrays

Laurent Vaissie, Eric Johnson, Waleed Mohammed, Jinwon Sung

Proceedings Volume 4291, (2001) https://doi.org/10.1117/12.424855

KEYWORDS: Multimode fibers, Polishing, Single mode fibers, Gradient-index optics, Beam propagation method, Waveguides, Surface finishing, Fiber Bragg gratings, Light wave propagation, Etching

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Proceedings Article | 27 April 2000 Paper

Integration of micro-optics into gigabit ethernet patchcords for enhanced performance

Eric Johnson, Jared Stack, Charles Koehler, Thomas Suleski

Proceedings Volume 3952, (2000) https://doi.org/10.1117/12.384422

KEYWORDS: Graded index fibers, Single mode fibers, Optics manufacturing, Manufacturing, Chemical elements, Collimation, Micro optics, Refractive index, Photomasks, Optical components

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Proceedings Article | 2 July 1999 Paper

Diffractive-optics-based micromirror scanning system

John Hammond, Thomas Suleski, Eric Johnson, Charles Koehler, John Childers, Michael Johnson

Proceedings Volume 3787, (1999) https://doi.org/10.1117/12.351634

KEYWORDS: Mirrors, Beam steering, Microelectromechanical systems, Diffraction, Micromirrors, Liquid crystals, LIDAR, Scanners, Diffraction gratings, Optical scanning systems

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Proceedings Article | 1 June 1999 Paper

Diffractive microrods for fiber optic applications

Eric Johnson, Charles Koehler, Thomas Suleski, Jared Stack, Michael Feldman

Proceedings Volume 3633, (1999) https://doi.org/10.1117/12.349325

KEYWORDS: Semiconducting wafers, Fiber optics, Microlens, Connectors, Lenses, Wafer-level optics, Optical fibers, Optical components, Silicon, Packaging

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Proceedings Article | 1 June 1999 Paper

Diffractive optics for laser welding and bonding

John Hammond, Eric Johnson, Charles Koehler, Jared Stack, Thomas Suleski, Aravinda Kar, Wen Guo

Proceedings Volume 3633, (1999) https://doi.org/10.1117/12.349328

KEYWORDS: Laser welding, Aluminum, Diffractive optical elements, Beam shaping, Beam splitters, Aerospace engineering, Laser optics, Laser processing, Laser systems engineering, Gaussian beams

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Proceedings Article | 30 April 1999 Paper

Micro integration of VCSELs, detectors, and optics

John Hammond, Eric Johnson, Hongtao Han, Adam Fedor

Proceedings Volume 3631, (1999) https://doi.org/10.1117/12.348316

KEYWORDS: Silicon, Semiconducting wafers, Sensors, Packaging, Optical alignment, Wafer-level optics, Optical components, Vertical cavity surface emitting lasers, Active optics, Optics manufacturing

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Proceedings Article | 30 April 1999 Paper

Integration of silicon bench micro-optics

Hongtao Han, Jared Stack, Jay Mathews, Charles Koehler, Eric Johnson, Alan Kathman

Proceedings Volume 3631, (1999) https://doi.org/10.1117/12.348318

KEYWORDS: Silicon, Optical fibers, Optical arrays, Micro optics, Integrated optics, Optics manufacturing, Fiber optics, Diffractive optical elements, Optical alignment, Etching

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Proceedings Article | 20 April 1998 Paper

Microdiffractive optics for integration with single-mode fibers

Eric Johnson, Charles Koehler, Thomas Suleski, Jared Stack, Michael Feldman

Proceedings Volume 3289, (1998) https://doi.org/10.1117/12.305471

KEYWORDS: Connectors, Optical fibers, Lenses, Single mode fibers, Glasses, Optical components, Collimation, Integrated optics, Zemax, GRIN lenses

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Proceedings Article | 20 April 1998 Paper

Compact optical encoder approach utilizing novel diffractive optics design

Catherine DeVoe, Bruce Horwitz, Eric Johnson, Adam Fedor

Proceedings Volume 3289, (1998) https://doi.org/10.1117/12.305483

KEYWORDS: Computer programming, Sensors, Mirrors, Optical encoders, Optical design, Optical alignment, Diffractive optical elements, Prisms, Optical components, Integrated optics

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SPIE Journal Paper | 1 January 1998

Optical recognition of phase-encrypted biometrics

Eric Johnson, James Brasher, Don Gregory, Peter Erbach, Michael Duignan, Gregory Behrmann, Sing Lee, Walter Daschner, Pin Long

OE, Vol. 37, Issue 01, (January 1998) https://doi.org/10.1117/12.10.1117/1.601850

KEYWORDS: Photomasks, Biometrics, Lithography, Analog electronics, Wavefronts, CCD image sensors, LCDs, Optical correlators, Optical engineering, Fingerprint recognition

SPIE Journal Paper | 1 September 1997

Incoherent optical correlators and phase encoding of identification codes for access control or authentication

James Brasher, Eric Johnson

OE, Vol. 36, Issue 09, (September 1997) https://doi.org/10.1117/12.10.1117/1.601414

KEYWORDS: Optical correlators, Computer programming, Fourier transforms, Spatial light modulators, Detection and tracking algorithms, Diffraction, Polymer optical fibers, Phase only filters, Information security, Light emitting diodes

Proceedings Article | 23 August 1995 Paper

Micro-opto-electro machine devices for spatial light modulation

Rodney Clark, John Karpinsky, Eric Johnson

Proceedings Volume 2566, (1995) https://doi.org/10.1117/12.217367

KEYWORDS: Modulation, Modulators, Spatial light modulators, Microlens, Microlens array, Optically addressed spatial light modulators, Mirrors, Phase shift keying, Photodetectors, Optical signal processing

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Proceedings Article | 20 April 1995 Paper

Design and optimization of cascaded diffractive elements

Eric Johnson, Daniel Brown, Mustafa Abushagur

Proceedings Volume 2404, (1995) https://doi.org/10.1117/12.207466

KEYWORDS: Diffractive optical elements, Beam propagation method, Wave propagation, Chemical elements, Genetic algorithms, Optical design, Lens design, Light wave propagation, Fourier transforms, Ray tracing

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Proceedings Article | 20 April 1995 Paper

More flexible basis set for diffractive optical element (DOE) lens design

Daniel Brown, Eric Johnson

Proceedings Volume 2404, (1995) https://doi.org/10.1117/12.207459

KEYWORDS: Diffractive optical elements, Lens design, Ray tracing, Imaging systems, Optical design, Optical components, Wavefronts, Information operations, Robotics, Medical diagnostic instruments

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Proceedings Article | 28 December 1993 Paper

Advantages of genetic algorithm optimization methods in diffractive optic design

Eric Johnson, Alan Kathman, Diane Hochmuth, A. Cook, David Brown, William Delaney

Proceedings Volume 10271, 1027105 (1993) https://doi.org/10.1117/12.170193

KEYWORDS: Genetic algorithms, Optimization (mathematics), Optical design, Diffractive optical elements, Optical components, Optical interconnects, Switching, Interferometry, Polarization

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Proceedings Article | 1 October 1991 Paper

Rigorous electromagnetic modeling of diffractive optical elements

Eric Johnson, Alan Kathman

Proceedings Volume 1545, (1991) https://doi.org/10.1117/12.49418

KEYWORDS: Diffractive optical elements, Electromagnetism, Diffraction, Optical design, Microlens array, Polarization, Diffraction gratings, Dielectric polarization, Microlens, Systems modeling

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