Prof. Markus Pollnau Profile

KEYWORDS: Resonators, Mirrors, Reflectivity, Resonance enhancement, Solids, Terahertz radiation, Phase shifts, Light sources, Physics, Communication and information technologies

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Proceedings Article | 20 February 2017 Presentation + Paper

The linewidth of distributed feedback resonators: the combined effect of thermally induced chirp and gain narrowing

Cristine C. Kores, Markus Pollnau, Dimitri Geskus, Nur Ismail, Meindert Dijkstra, Edward Bernhardi

Proceedings Volume 10090, 1009014 (2017) https://doi.org/10.1117/12.2252739

KEYWORDS: Laser resonators, Resonators, Thermal effects, Channel waveguides, Refractive index, Phase shifts, Photons, Absorption, Waveguides, Reflectivity

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Proceedings Article | 16 February 2017 Presentation + Paper

Spectroscopy of erbium-doped potassium double tungstate waveguides

Sergio Vázquez-Córdova, Shanmugam Aravazhi, Christos Grivas, Alexander Heuer, Christian Kränkel, Yean-Sheng Yong, Sonia García-Blanco, Jennifer Herek, Markus Pollnau

Proceedings Volume 10106, 1010604 (2017) https://doi.org/10.1117/12.2252488

KEYWORDS: Erbium, Waveguides, Optical amplifiers, Instrument modeling, Energy transfer, Optical pumping, Crystals, Signal detection, Luminescence, Amplifiers, Spectroscopy, Lutetium

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Proceedings Article | 16 February 2017 Paper

Temperature-dependent absorption and gain of ytterbium-doped potassium double tungstates for chip-scale amplifiers and lasers

Yean-Sheng Yong, Shanmugam Aravazhi, Sergio Vázquez-Córdova, Jennifer Herek, Sonia García-Blanco, Markus Pollnau

Proceedings Volume 10106, 1010606 (2017) https://doi.org/10.1117/12.2252154

KEYWORDS: Spectroscopy, Absorption, Optical amplifiers, Ytterbium, Waveguide lasers, Waveguides, Thin films, Temperature metrology, Gadolinium

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Proceedings Article | 16 March 2015 Paper

Rare-earth-ion-doped waveguide lasers on a silicon chip

Markus Pollnau

Proceedings Volume 9359, 935910 (2015) https://doi.org/10.1117/12.2077474

KEYWORDS: Silicon, Semiconductor lasers, Waveguides, Channel waveguides, Optical amplifiers, Waveguide lasers, Ions, Laser damage threshold, Integrated optics, Fiber Bragg gratings

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Proceedings Article | 5 March 2015 Paper

DNA separation and fluorescent detection in an optofluidic chip with sub-base-pair resolution

Markus Pollnau, Manfred Hammer, Chaitanya Dongre, Hugo Hoekstra

Proceedings Volume 9320, 93200J (2015) https://doi.org/10.1117/12.2077515

KEYWORDS: Microfluidics, Waveguides, Molecules, Calibration, Lab on a chip, Luminescence, Biological research, Genetics, Capillaries, Integrated optics

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Proceedings Article | 27 February 2015 Paper

Spiral amplifiers in a-Al2O3:Er on a silicon chip with 20 dB internal net gain

M. Pollnau, S. Vázquez-Córdova, E. Bernhardi, Ke. Wörhoff, J. Herek, S. García-Blanco

Proceedings Volume 9365, 93650M (2015) https://doi.org/10.1117/12.2077503

KEYWORDS: Waveguides, Ions, Doping, Amplifiers, Silicon, Erbium, Neodymium, Optical amplifiers, Wavelength division multiplexing, Semiconducting wafers

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Proceedings Article | 20 February 2015 Paper

On the efficiency of Tm-doped 2µm lasers

M. Pollnau, K. van Dalfsen, C. Grivas, S. García-Blanco, S. Aravazhi

Proceedings Volume 9342, 93421U (2015) https://doi.org/10.1117/12.2077490

KEYWORDS: Quantum efficiency, Channel waveguides, Chromium, Potassium, Ions, Waveguides, Thulium, Neodymium, Epitaxy, Polishing

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Proceedings Article | 1 May 2014 Paper

Coherence manifestation in a continuous-wave laser

M. Pollnau, M. Eichhorn

Proceedings Volume 9135, 91350A (2014) https://doi.org/10.1117/12.2052081

KEYWORDS: Photons, Resonators, Laser resonators, Continuous wave operation, Absorption, Laser damage threshold, Crystals, Coherence (optics), Optical microsystems

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Proceedings Article | 1 May 2014 Paper

Erbium-doped spiral amplifiers with 20 dB gain on a silicon chip

S. Vázquez-Córdova, M. Pollnau, E. Bernhardi, K. Wörhoff, S. García-Blanco

Proceedings Volume 9133, 913308 (2014) https://doi.org/10.1117/12.2052298

KEYWORDS: Waveguides, Optical amplifiers, Erbium, Silicon, Channel waveguides, Wave propagation, Light wave propagation, Absorption, Amplifiers, Semiconductor lasers

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Proceedings Article | 18 June 2013 Paper

Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems

B. Akca, B. Považay, L. Chang, A. Alex, K. Wörhoff, R. de Ridder, W. Drexler, M. Pollnau

Proceedings Volume 8802, 880202 (2013) https://doi.org/10.1117/12.2032504

KEYWORDS: Optical coherence tomography, Spectroscopy, Polarization, Imaging systems, System integration, Waveguides, Refractive index, In vivo imaging, Spectrometer engineering, Stars

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Proceedings Article | 6 March 2013 Paper

Rare-earth-ion-doped ultra-narrow-linewidth lasers on a silicon chip and applications to intra-laser-cavity optical sensing

E. Bernhardi, R. de Ridder, K. Wörhoff, M. Pollnau

Proceedings Volume 8599, 859909 (2013) https://doi.org/10.1117/12.2012520

KEYWORDS: Microwave radiation, Phase shifts, Waveguides, Semiconductor lasers, Waveguide lasers, Silicon, Fiber Bragg gratings, Reflectivity, Laser applications, Sensors

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Proceedings Article | 2 February 2012 Paper

Biophotonic sensors on a silicon chip for Raman spectroscopy and optical coherence tomography

Kerstin Wörhoff, René de Ridder, Markus Pollnau, B. Imran Akca, Nur Ismail

Proceedings Volume 8266, 826602 (2012) https://doi.org/10.1117/12.906998

KEYWORDS: Raman spectroscopy, Optical coherence tomography, Waveguides, Spectroscopy, Silicon, Integrated optics, Biomedical optics, Signal attenuation, Confocal microscopy, Polarization

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Proceedings Article | 17 January 2011 Paper

Nd-doped waveguide amplifiers for heterogeneous integration in optical backplanes

Kerstin Wörhoff, Feridun Ay, Alfred Driessen, Folkert Horst, Tobias Lamprecht, Jing Yang, Markus Pollnau, Bert Offrein, Sonia García-Blanco

Proceedings Volume 7942, 79420Q (2011) https://doi.org/10.1117/12.873981

KEYWORDS: Waveguides, Polymers, Optical amplifiers, Channel waveguides, Polymer multimode waveguides, Integrated optics, Ions, Channel projecting optics, Signal attenuation, Wave propagation

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Proceedings Article | 18 February 2010 Paper

Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light

K. Wörhoff, F. Civitci, N. Ismail, M. Pollnau, F. Sun, R. de Ridder, A. Driessen

Proceedings Volume 7559, 755903 (2010) https://doi.org/10.1117/12.839910

KEYWORDS: Waveguides, Scattering, Light scattering, Raman scattering, Fluorescence spectroscopy, Luminescence, Integrated optics, Raman spectroscopy, Statistical modeling, Optical fibers

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Proceedings Article | 16 February 2010 Paper

On-chip integrated lasers in Al2O3:Er on silicon

M. Pollnau, J. Bradley, R. de Ridder, F. Ay, K. Wörhoff, E. Bernhardi

Proceedings Volume 7605, 76050M (2010) https://doi.org/10.1117/12.845842

KEYWORDS: Erbium, Silicon, Waveguides, Integrated optics, Channel waveguides, Optical amplifiers, Resonators, Semiconductor lasers, Absorption, Output couplers

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Proceedings Article | 12 February 2010 Paper

Rare-earth-ion-doped Al2O3 for integrated optical amplification

K. Wörhoff, L. Agazzi, M. Pollnau, J. D. Bradley

Proceedings Volume 7604, 760408 (2010) https://doi.org/10.1117/12.839188

KEYWORDS: Erbium, Waveguides, Integrated optics, Channel waveguides, Silicon, Optical amplifiers, Picosecond phenomena, Eye, Absorption, Polarization

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Proceedings Article | 25 February 2009 Paper

Three-dimensional photonic devices fabricated by ultrafast lasers for optical sensing in lab-on-a-chip

R. Martínez Vázquez, A. Crespi, M. Pollnau, C. Dongre, R. Ramponi, G. Cerullo, P. Watts, R. van Weeghel, H. J. W. Hoekstra, H. van den Vlekkert, R. Osellame

Proceedings Volume 7203, 720313 (2009) https://doi.org/10.1117/12.809142

KEYWORDS: Waveguides, Refractive index, Microfluidics, Lab on a chip, Femtosecond phenomena, Interferometers, Sensors, Luminescence, Photonic devices, Laser induced fluorescence

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Proceedings Article | 19 December 2008 Paper

Waveguide lasers in KY(WO4)2 and Ti:sapphire

M. Pollnau

Proceedings Volume 7027, 702704 (2008) https://doi.org/10.1117/12.822439

KEYWORDS: Waveguides, Ions, Channel waveguides, Planar waveguides, Waveguide lasers, Integrated optics, Refractive index, Liquid phase epitaxy, Laser damage threshold, Crystals

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Proceedings Article | 1 May 2008 Paper

Optimization of Al2O3:Er3+ waveguide technology for active integrated optical devices

Kerstin Wörhoff, Tom Blauwendraat, Markus Pollnau, Dimitri Geskus, Feridun Ay, Jonathan Bradley

Proceedings Volume 6996, 699618 (2008) https://doi.org/10.1117/12.781066

KEYWORDS: Waveguides, Erbium, Sputter deposition, Absorption, Channel waveguides, Integrated optics, Thin films, Optical amplifiers, Planar waveguides, Refractive index

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Proceedings Article | 16 April 2008 Paper

Study of the luminescence properties of Nd(TTA)3phen-doped 6-FDA/epoxy waveguides

Mart Diemeer, Alfred Driessen, Lucie Hilderink, Markus Pollnau, Jing Yang

Proceedings Volume 6999, 699925 (2008) https://doi.org/10.1117/12.781437

KEYWORDS: Waveguides, Neodymium, Ions, Channel waveguides, Polymers, Luminescence, Absorption, Polymer multimode waveguides, Epoxies, Planar waveguides

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Proceedings Article | 9 August 2007 Paper

Dielectric waveguide lasers

Markus Pollnau

Proceedings Volume 6731, 67310Y (2007) https://doi.org/10.1117/12.752833

KEYWORDS: Waveguides, Channel waveguides, Crystals, Planar waveguides, Ytterbium, Liquid phase epitaxy, Ions, Reactive ion etching, Refractive index, Waveguide lasers

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Proceedings Article | 9 August 2007 Paper

Rare-earth-ion-doped Al2O3 waveguides for active integrated optical devices

Markus Pollnau, Feridun Ay, Kerstin Wörhoff, Tom Blauwendraat, Jonathan Bradley

Proceedings Volume 6731, 67310A (2007) https://doi.org/10.1117/12.751890

KEYWORDS: Etching, Aluminum, Waveguides, Channel waveguides, Gases, Erbium, Reactive ion etching, Silicon, Chlorine, Optical lithography

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Proceedings Article | 13 April 2005 Paper

Parallel broadband fluorescent light source for optical coherence tomography

Robert Eason, Laetitia Laversenne, Markus Pollnau, Rene-Paul Salathe, Simon Rivier, David Shepherd, Stephane Bourquin, Christos Grivas, Theo Lasser

Proceedings Volume 5690, (2005) https://doi.org/10.1117/12.592819

KEYWORDS: Waveguides, Optical coherence tomography, Luminescence, Light sources, Microlens array, Beam splitters, Mirrors, Interferometers, Optical fibers, Channel projecting optics

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Proceedings Article | 14 November 2003 Paper

Laser-assisted microstructuring for Ti:sapphire channel-waveguide fabrication

G. Janchen, Markus Pollnau, Patrik Hoffmann, C. Hibert, Rene-Paul Salathe, David Shepherd, Robert Eason, A. Crunteanu

Proceedings Volume 5147, (2003) https://doi.org/10.1117/12.543706

KEYWORDS: Laser ablation, Sapphire, Reactive ion etching, Planar waveguides, Channel waveguides, Luminescence, Waveguides, Excimer lasers, Etching, Atomic force microscopy

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Proceedings Article | 8 January 1996 Paper

Erbium 3-um fiber laser in the power range for surgery

G. Bunea, Ch. Ghisler, Heinz Weber, Willy Luethy, Markus Pollnau, M. Bunea

Proceedings Volume 2629, (1996) https://doi.org/10.1117/12.229523

KEYWORDS: Erbium, Fiber lasers, Mirrors, Absorption, Quantum cascade lasers, Surgery, Computer simulations, Erbium lasers, Laser therapeutics, Sapphire lasers

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Proceedings Article | 8 January 1996 Paper

Compact erbium 3-um crystal lasers for medical applications

S. Wittwer, Heinz Weber, Markus Pollnau, R. Spring, Willy Luethy

Proceedings Volume 2629, (1996) https://doi.org/10.1117/12.229517

KEYWORDS: Laser crystals, Crystals, Upconversion, Erbium, Erbium lasers, Laser applications, Surgery, Continuous wave operation, Mirrors, Medical laser equipment

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