Prof. El-Hang Lee Profile

Prof. El-Hang Lee

Professor Emeritus retired

SPIE Involvement:

Editor | Author

Publications (73)

Proceedings Article | 8 May 2012 Paper

Theoretical analysis of two nodal-wedges method to enhance the vibration behavior of NSOM probe with its tip being immersed partially in liquid

Wonjun Lee, Dae-Chan Kim, Beom-Hoan O, Se-Geun Park, El-Hang Lee, Seung Gol Lee

Proceedings Volume 8427, 84272Z (2012) https://doi.org/10.1117/12.922174

KEYWORDS: Near field scanning optical microscopy, Liquids, Numerical analysis, Optical scanning systems, Signal attenuation, Optical microscopes, Signal detection, Telecommunications, Scanning probe microscopy, Biomedical optics

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Proceedings Article | 2 February 2012 Paper

Identification of localized group-velocity dispersion of nanostructured silicon waveguide devices using white-light interferometry

Kyong Hon Kim, Seung Hwan Kim, Dong Wook Kim, Seoung Hun Lee, El-Hang Lee

Proceedings Volume 8265, 82650G (2012) https://doi.org/10.1117/12.910987

KEYWORDS: Waveguides, Dispersion, Interferometers, Silicon, Interferometry, Interfaces, Optical fibers, Nanostructuring, Photonics, Near field scanning optical microscopy

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Proceedings Article | 19 January 2011 Paper

Chromatic dispersion measurement of nano-silicon waveguides using a white-light interferometry method

Seung Hwan Kim, Seoung Hun Lee, Dong Wook Kim, Kyong Hon Kim, El-Hang Lee, Jong-Moo Lee

Proceedings Volume 7942, 79420R (2011) https://doi.org/10.1117/12.874004

KEYWORDS: Dispersion, Waveguides, Silicon, Single mode fibers, Interferometry, Optical fibers, Phase measurement, Interferometers, Optical amplifiers, Phase matching

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Proceedings Article | 16 February 2010 Paper

A white-light interferometry scheme to measure wide-wavelength dispersion of thermo-optic coefficients of optical switch materials

Se Min Kim, Seung Hwan Kim, Seoung Hun Lee, Yong Ku Kwon, Kyong Hon Kim, El-Hang Lee

Proceedings Volume 7605, 76050T (2010) https://doi.org/10.1117/12.842035

KEYWORDS: Temperature metrology, Interferometers, Dispersion, Thermal optics, Silica, Phase shifts, Interferometry, Thermography, Beam splitters, Optical switching

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Proceedings Article | 16 February 2010 Paper

A novel fabrication process of polymeric photonic crystal

Seung Hun Oh, Chang Seok Kim, El-Hang Lee, Myung Yung Jeong

Proceedings Volume 7605, 76050S (2010) https://doi.org/10.1117/12.841669

KEYWORDS: Polymers, Photonic crystals, Polymethylmethacrylate, Nanoimprint lithography, Silicon, Electron beam lithography, Etching, Fabrication, Waveguides, Image processing

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Proceedings Article | 11 February 2009 Paper

Design of compact silicon optical modulator using photonic crystal MZI structure

Tae Yong Han, Hyun-Shik Lee, Se-Geun Park, Beom-Hoan O, Seung-Gol Lee, El-Hang Lee

Proceedings Volume 7219, 72190Q (2009) https://doi.org/10.1117/12.813460

KEYWORDS: Photonic crystals, Refractive index, Waveguides, Electro optic polymers, Silicon, Optical modulators, Electro optics, Polymers, Modulators, Finite-difference time-domain method

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Proceedings Article | 11 February 2009 Paper

Characterization and optimization of residual layer thickness during UV imprint process for singlemode waveguide fabrication

Shinmo An, Hyun-Shik Lee, Se-Guen Park, Beom-Hoan O, Seung-Gol Lee, El-Hang Lee

Proceedings Volume 7219, 72190R (2009) https://doi.org/10.1117/12.813482

KEYWORDS: Polymers, Waveguides, Optical components, Ultraviolet radiation, Photonics, Photonic integrated circuits, Polymer multimode waveguides, Silicon, Polymer thick film flex circuits, UV optics

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Proceedings Article | 11 February 2009 Paper

Design and fabrication of mode size adapter using hybrid imprint lithography

Se-Hwan Sim, Han-Hyong Kim, Seung-Kook Yang, Hai-Joong Park, Seong-Jong Kim, Beom-Hoan O, Seung-Gol Lee, El-Hang Lee, Se-Geun Park

Proceedings Volume 7219, 72190X (2009) https://doi.org/10.1117/12.811958

KEYWORDS: Lithography, Wet etching, Waveguides, Optical lithography, Silica, Photoresist materials, Cladding, Etching, Ultraviolet radiation, Refractive index

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Proceedings Article | 2 May 2008 Paper

Design of pattern-specific mask grating for giving the effect of an off-axis illumination

Young-Seok Kim, Seok Ho Song, Jong Ung Lee, Sung Hyun Oh, Yong Kyoo Choi, Munsik Kim, Beom-Hoan O, Se-Geun Park, El-Hang Lee, Seung Gol Lee

Proceedings Volume 6792, 67920R (2008) https://doi.org/10.1117/12.798809

KEYWORDS: Photomasks, Lithographic illumination, Optical design, Chromium, Lithography, Quartz, Atrial fibrillation

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Proceedings Article | 23 April 2008 Paper

Measuring near-field optical distributions emitted from chip surface of photonic crystal patterned light emitting diodes

Kyoung-Duck Park, Won-Soo Ji, Dae-Seo Park, Dae-Chan Kim, Beom-Hoan O, Se-Geun Park, El-Hang Lee, Seung Gol Lee

Proceedings Volume 6988, 69880P (2008) https://doi.org/10.1117/12.780816

KEYWORDS: Light emitting diodes, Near field scanning optical microscopy, Optical fibers, Near field, Near field optics, Blue light emitting diodes, Photonic crystals, Sapphire, Optical microscopy, Analytical research

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Proceedings Article | 21 April 2008 Paper

Photonic crystal-based WDM filter for integrated optical triplexer transceiver

Dae-Seo Park, Jae-Hyun Kim, Beom-Hoan O, Se-Geun Park, El-Hang Lee, Seung-Gol Lee

Proceedings Volume 6989, 69891S (2008) https://doi.org/10.1117/12.780779

KEYWORDS: Optical filters, Photonic crystals, Waveguides, Fiber to the x, Finite-difference time-domain method, Integrated optics, Electronic filtering, Crystals, Wavelength division multiplexing, Transceivers

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Proceedings Article | 12 February 2008 Paper

Design of a silicon optical micro-ring resonator sensor for improved sensitivity and selectivity

Hyun-Shik Lee, B. H. O, S. G. Lee, El-Hang Lee

Proceedings Volume 6897, 68970W (2008) https://doi.org/10.1117/12.769376

KEYWORDS: Resonators, Waveguides, Microrings, Refractive index, Sensors, Silicon, Finite-difference time-domain method, Biosensing, Biological and chemical sensing, Biosensors

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Proceedings Article | 12 February 2008 Paper

The effect of KOH and KOH/IPA etching on the surface roughness of the silicon mold used for polymer waveguide imprinting

Shinmo An, Seung-Gol Lee, Beom-Hoan O, Hyong-Hon Kim, Se-Guen Park, El-Hang Lee

Proceedings Volume 6897, 689717 (2008) https://doi.org/10.1117/12.770997

KEYWORDS: Etching, Surface roughness, Silicon, Polymers, Waveguides, Semiconducting wafers, Atomic force microscopy, Wet etching, Polymer multimode waveguides, Crystals

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Proceedings Article | 12 February 2008 Paper

Coupling performance and fabrication method of a waveguide grating coupler with non-uniform duty ratio

Jeong Su Yang, Jun-Ho Sung, Beom-hoan O, Seung Gol Lee, El-Hang Lee

Proceedings Volume 6897, 68970B (2008) https://doi.org/10.1117/12.762874

KEYWORDS: Waveguides, Diffraction gratings, Near field optics, Near field, Lithography, Optical design, Optical fibers, Holography, Diffraction, Photoresist materials

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Proceedings Article | 12 February 2008 Paper

Photonic crystal-based GE-PON triplexer using point defects

Dae-Seo Park, Beom-Hoan O, Se-Geun Park, El-Hang Lee, Seung Gol Lee

Proceedings Volume 6897, 689711 (2008) https://doi.org/10.1117/12.762186

KEYWORDS: Optical filters, Photonic crystals, Waveguides, Refractive index, Fiber to the x, Integrated optics, Crystals, Finite-difference time-domain method, Optical design, Transmittance

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Proceedings Article | 16 May 2007 Paper

Design of micro-ring optical sensors and circuits for integration on optical printed circuit boards (O-PCBs)

El-Hang Lee, Hyun Lee, S. Lee, B. O, S. Park, K. Kim

Proceedings Volume 6585, 658502 (2007) https://doi.org/10.1117/12.720710

KEYWORDS: Resonators, Microrings, Waveguides, Refractive index, Sensors, Optical sensors, Silicon, Optical printed circuit boards, Integrated optics, Optical circuits

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Proceedings Article | 13 March 2007 Paper

Fabrication of a flexible optical printed circuit board (FO-PCB)

Hyun-Shik Lee, Shin-Mo An, Seung Gol Lee, B. O, Se Geon Park, El-Hang Lee

Proceedings Volume 6476, 64760M (2007) https://doi.org/10.1117/12.708704

KEYWORDS: Waveguides, Ultraviolet radiation, Optical printed circuit boards, Optical interconnects, Polymers, Vertical cavity surface emitting lasers, Silicon, Optical arrays, Polymer multimode waveguides, Mirrors

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Proceedings Article | 14 February 2007 Paper

Fabrication of 45^o-micro-reflector-ended polymer waveguides using one-step UV embossing technique

Shinmo An, Hyun-Shik Lee, Seung-Gul Lee, Beom-Hoan O, Hyong-Hon Kim, Se-Geun Park, El-Hang Lee

Proceedings Volume 6476, 64760V (2007) https://doi.org/10.1117/12.708665

KEYWORDS: Waveguides, Silicon, Polymers, Ultraviolet radiation, Etching, Fabrication, Silica, Polymer multimode waveguides, Mirror structures, Metals

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Proceedings Article | 14 February 2007 Paper

Photonic crystal group delay device for optical code division multiple access

Jun-Ho Sung, Chul-Hyun Choi, Min Woo Lee, Seung Gol Lee, El-Hang Lee, Beom-Hoan O

Proceedings Volume 6476, 647610 (2007) https://doi.org/10.1117/12.707306

KEYWORDS: Waveguides, Photonic crystals, Finite-difference time-domain method, Code division multiplexing, Computer programming, Lanthanum, Crystal optics, Colorimetry, Dispersion, Integrated optics

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Proceedings Article | 14 February 2007 Paper

Fabrication of polymer AWG demultiplexer using embossing technique

Chul-Hyun Choi, Min Woo Lee, Jun-Ho Sung, Bo-Soon Kim, Jeong Su Yang, El-Hang Lee, Beom-Hoan O

Proceedings Volume 6476, 64760Y (2007) https://doi.org/10.1117/12.707301

KEYWORDS: Waveguides, Polymers, Demultiplexers, Fabrication, Cladding, Telecommunications, Ultraviolet radiation, Photonic integrated circuits, Photonic devices, Optical communications

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Proceedings Article | 9 February 2007 Paper

Temperature-insensitive refractometer based on a thermo-optically optimized long-period waveguide grating

Seok Hyun Hwang, Kyong Hon Kim, Suk-mock Lee, Min-Hee Lee, Shin-Mo An, El-Hang Lee

Proceedings Volume 6476, 647614 (2007) https://doi.org/10.1117/12.707223

KEYWORDS: Refractive index, Waveguides, Polymers, Temperature metrology, Thermal optics, Thermal effects, Polymer multimode waveguides, Silica, Sensors, Photorefractive polymers

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Proceedings Article | 9 February 2007 Paper

Optical integrated circuits and networks on microscale/nanoscale

El-Hang Lee, S. Lee, B. O, S. Park, K. Kim, S. Song

Proceedings Volume 6476, 64760B (2007) https://doi.org/10.1117/12.707279

KEYWORDS: Waveguides, Very large scale integration, Photonic crystals, Photonics, Integrated optics, Photonic integrated circuits, Optical networks, Integrated circuit design, Optical circuits, Polymers

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Proceedings Article | 9 February 2007 Paper

Design and characterization of an out-of-plane polymer waveguide grating coupler

Jeong Su Yang, Chul Hyun Choi, Beom-hoan O, Seung Gol Lee, El-Hang Lee

Proceedings Volume 6476, 647611 (2007) https://doi.org/10.1117/12.707309

KEYWORDS: Waveguides, Diffraction gratings, Polymers, Polymer multimode waveguides, Diffraction, Refractive index, Optical design, Silicon, Optical fibers, Polymer optical fibers

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Proceedings Article | 8 February 2007 Paper

Hard and flexible optical printed circuit board

El-Hang Lee, Hyun Sik Lee, S. Lee, B. H. O, S. Park, K. Kim

Proceedings Volume 6470, 64700J (2007) https://doi.org/10.1117/12.706780

KEYWORDS: Waveguides, Polymers, Computing systems, Optical printed circuit boards, Sensors, Ultraviolet radiation, Integrated optics, Polymer multimode waveguides, Vertical cavity surface emitting lasers, Photonics

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Proceedings Article | 13 September 2006 Paper

Design, fabrication, and integration of micro/nano-scale photonic crystal devices and plasmonic devices for VLSI photonic integration application

El-Hang Lee, B. H. O, H. S. Noh, S. H. Song, S. G. Lee, S. G. Park

Proceedings Volume 6327, 632705 (2006) https://doi.org/10.1117/12.680469

KEYWORDS: Photonic crystals, Very large scale integration, Plasmonics, Photonic devices, Photonic crystal devices, Directional couplers, Waveguides, Integrated optics, Near field optics, Finite-difference time-domain method

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Proceedings Article | 8 September 2006 Paper

Optical printed circuit board (O-PCB) and VLSI photonic integrated circuits: visions, challenges, and progresses

El-Hang Lee, S. G. Lee, B. H. O, S. G. Park, H. S. Noh, K. H. Kim, S. H. Song

Proceedings Volume 6343, 63433E (2006) https://doi.org/10.1117/12.708003

KEYWORDS: Waveguides, Very large scale integration, Photonic crystals, Integrated optics, Photonic integrated circuits, Photonic devices, Refractive index, Sensors, Polymers, Optical printed circuit boards

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Proceedings Article | 21 April 2006 Paper

Integration of generic and application-specific optical printed circuit boards and VLSI photonic integrated circuits

El-Hang Lee, S. Lee, B. O, S. Park, K. Kim

Proceedings Volume 6185, 61850K (2006) https://doi.org/10.1117/12.673846

KEYWORDS: Waveguides, Integrated optics, Very large scale integration, Optical printed circuit boards, Optical alignment, Photonic crystals, Sensors, Computing systems, Vertical cavity surface emitting lasers, Photonic devices

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Proceedings Article | 20 April 2006 Paper

Micro/nano-scale design, fabrication, and integration of generic and application-specific optical printed circuit boards (O-PCB) and VLSI photonic integrated circuits

El-Hang Lee, S. Lee, B. H. O, S. Park, K. Kim, S. Song, H. Noh

Proceedings Volume 6183, 618301 (2006) https://doi.org/10.1117/12.659712

KEYWORDS: Waveguides, Polymers, Photonic crystals, Very large scale integration, Photonic integrated circuits, Directional couplers, Refractive index, Integrated optics, Computing systems, Polymer multimode waveguides

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