Dr. Christi K. Madsen Profile

Dr. Christi K. Madsen

Professor

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Publications (34)

Proceedings Article | 2 October 2024 Presentation

Glass non-imaging optical concentrators: simulations and laser-assisted prototyping

Christi Madsen

Proceedings Volume 13132, 131320B (2024) https://doi.org/10.1117/12.3028938

KEYWORDS: Solar concentrators, Simulations, Photodetectors, Lenses, Laser irradiation, Total internal reflection, Tolerancing, Silica, Ray tracing, Optical instrument design

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Proceedings Article | 1 October 2024 Poster + Paper

Modeling of waveguiding interconnect for coupling to silicon photonics

Haitian Liu, C. Madsen

Proceedings Volume 13129, 131290P (2024) https://doi.org/10.1117/12.3028765

KEYWORDS: Optical gratings, Waveguides, Silicon photonics

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Proceedings Article | 4 March 2022 Presentation + Paper

Multiport optical concentrator for multimode fibers and high-speed detector interfacing

Christi Madsen

Proceedings Volume 12027, 120270L (2022) https://doi.org/10.1117/12.2610326

KEYWORDS: Solar concentrators, Photodetectors, Multimode fibers, Compound parabolic concentrators, Ray tracing, Nonimaging optics, Wireless communications

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Proceedings Article | 4 March 2022 Presentation + Paper

Rapid fabrication of YAG-Ce phosphor glass composites on borosilicate glass for white light LEDs

Javed Ali, Christi Madsen

Proceedings Volume 12022, 120220M (2022) https://doi.org/10.1117/12.2609818

KEYWORDS: Light emitting diodes, Borosilicate glass, Laser sintering, Composites, Laser processing, Phosphorescent materials

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Proceedings Article | 5 March 2021 Presentation + Paper

Millimeter-scale glass optical concentrator design and fabrication

Christi Madsen

Proceedings Volume 11677, 1167716 (2021) https://doi.org/10.1117/12.2578454

KEYWORDS: Solar concentrators, Glasses, Surface roughness, Optical design, Surface finishing, Free space optics, Wet etching, Silica, Receivers, Polishing

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Proceedings Article | 25 March 2019 Presentation + Paper

Femtosecond-laser-based prototyping of light pipe circuits

C. Madsen, Y. Dogan, C. Hu, M. Morrison, Robert Atkins

Proceedings Volume 10906, 109060A (2019) https://doi.org/10.1117/12.2510856

KEYWORDS: Polishing, Polarization, Prototyping, Etching, Cladding, Surface finishing, Light scattering, Scattering, Femtosecond phenomena, Optical testing

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Proceedings Article | 22 February 2018 Paper

A parametric approach for exploring grating coupler design space

T. Bravo, C. Madsen

Proceedings Volume 10537, 105371Q (2018) https://doi.org/10.1117/12.2290993

KEYWORDS: Cladding, Etching, Optical design, Composites, Phase shifts, Waveguides, Instrument modeling, Silicon, Free space, Phase matching

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Proceedings Article | 19 February 2018 Presentation + Paper

Glass light pipes for solar concentration

C. Madsen, Y. Dogan, M. Morrison, C. Hu, R. Atkins

Proceedings Volume 10520, 105201A (2018) https://doi.org/10.1117/12.2291249

KEYWORDS: Waveguides, Surface roughness, Solar concentrators

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Proceedings Article | 16 October 2017 Paper

Fabrication of advanced glass light pipes for solar concentrators

Y. Dogan, M. Morrison, C. Hu, R. Atkins, M. Solmaz, C. Madsen

Proceedings Volume 10448, 104482G (2017) https://doi.org/10.1117/12.2279849

KEYWORDS: Glasses, Etching, Silica, Femtosecond phenomena, Wet etching, Sensors, Beam controllers, Laser irradiation, Chemical analysis, Atomic force microscopy

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Proceedings Article | 11 May 2017 Presentation + Paper

Optimization of electro-optic phase shifters for integrated optical phased arrays

Dwayne Macik, Tyler Bravo, Seeley Pentecost, Francisco Espinal, Christi Madsen

Proceedings Volume 10181, 1018105 (2017) https://doi.org/10.1117/12.2262725

KEYWORDS: Electro optics, Phased array optics, Beam steering, Sensors, Integrated optics, Lithium niobate, Phase shifts, Phased arrays, Silicon, Waveguides, Infrared cameras, Cameras, Infrared imaging, Near field

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Proceedings Article | 8 May 2017 Paper

Integrated optic single-ring filter for narrowband phase demodulation

C. Madsen

Proceedings Volume 10194, 101942W (2017) https://doi.org/10.1117/12.2262715

KEYWORDS: Modulation, Optical filters, Linear filtering, Phase shift keying, Signal detection, Signal processing, Phase modulation, Demodulation, Integrated optics, Signal attenuation

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Proceedings Article | 1 May 2017 Presentation + Paper

In-motion optical sensing for assessment of animal well-being

Colton Atkins, Kevin Pond, Christi Madsen

Proceedings Volume 10217, 1021709 (2017) https://doi.org/10.1117/12.2262194

KEYWORDS: Optical sensors, Sensors, Diagnostics, Biometrics, Gait analysis, Video, Optical sensing, Data acquisition, Cameras, Analytical research, Signal detection, Information technology, Optical testing, Motion measurement

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Proceedings Article | 14 September 2016 Presentation + Paper

Fabrication of LiNbO3-As2S3 waveguides for beam steering applications

Dwayne Macik, Christi Madsen

Proceedings Volume 9970, 99700H (2016) https://doi.org/10.1117/12.2237806

KEYWORDS: Beam steering, Waveguides, Phased array optics, Lithium niobate, Arsenic, Electrodes, Electro optics, Refractive index, Phase shifts, Aluminum

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Proceedings Article | 9 September 2015 Paper

A hybrid DMD-waveguide optical signal processor

D. Macik, R. Howe, C. Madsen

Proceedings Volume 9598, 95980J (2015) https://doi.org/10.1117/12.2188108

KEYWORDS: Digital micromirror devices, Optical signal processing, Mirrors, Signal processing, Fourier transforms, Filtering (signal processing), Optical filters, Phased array optics, Hybrid optics, Spatial filters

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Proceedings Article | 5 September 2015 Presentation + Paper

Demonstration of an intermediate-scale lens-to-channel waveguide solar concentrator

R. Huang, Y. Liu, C. Madsen

Proceedings Volume 9559, 955903 (2015) https://doi.org/10.1117/12.2188697

KEYWORDS: Waveguides, Solar concentrators, Fresnel lenses, Photodiodes, Polymethylmethacrylate, Reflection, Aluminum, Solar cells, Mirrors, Optical components

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Proceedings Article | 5 September 2015 Presentation + Paper

Fresnel lens characterization for solar concentration efficiency

W. Harris, M. Hallam, C. Madsen, J. Simcik

Proceedings Volume 9559, 955902 (2015) https://doi.org/10.1117/12.2188674

KEYWORDS: Fresnel lenses, Diffusers, Solar energy, Cameras, Neodymium, Composites, Receivers, Solar concentrators, Solar thermal energy, Sun

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Proceedings Article | 26 August 2015 Paper

Demonstration of a stand-alone cylindrical fiber coil for optical amplifiers

Steven Laxton, Tyler Bravo, Christi Madsen

Proceedings Volume 9586, 958619 (2015) https://doi.org/10.1117/12.2188368

KEYWORDS: Optical fabrication, Multimode fibers, Ray tracing, Spindles, Optical amplifiers, Structured optical fibers, Fiber optics, Waveguides, Optical testing, Epoxies

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Proceedings Article | 2 April 2015 Paper

resonant enhanced low-power nonlinear tuning capability using an As2S3 waveguide on LiNbO3

Yifeng Zhou, Xin Wang, Chen Zhang, Christi Madsen

Proceedings Volume 9365, 936514 (2015) https://doi.org/10.1117/12.2080071

KEYWORDS: Waveguides, Resonators, Chromium, Titanium, Waveguide modes, Phase shifts, Nonlinear optics, Silica, Wave propagation, Glasses

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Proceedings Article | 2 April 2015 Paper

Characterization of sidewall Bragg gratings using optical low-coherence interferometry with a broadband source

Chen Zhang, Xin Wang, Christi Madsen

Proceedings Volume 9365, 93651G (2015) https://doi.org/10.1117/12.2080104

KEYWORDS: Waveguides, Fiber Bragg gratings, Mid-IR, Bandpass filters, Channel waveguides, Fringe analysis, Interferometry, Lithography, Reactive ion etching, Wave propagation

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Proceedings Article | 7 October 2014 Paper

A small-scale concentrating solar thermal system

C. Madsen, A. Schulz, W. Wu, A. Sosa, R. Huang, T. Mohamed, R. Atkins, J. Simcik

Proceedings Volume 9175, 917507 (2014) https://doi.org/10.1117/12.2062081

KEYWORDS: Receivers, Solar thermal energy, Solar energy, Aluminum, Prototyping, Fresnel lenses, Solar cells, Temperature metrology, Heat flux, Sun

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Proceedings Article | 7 October 2014 Paper

First demonstration of a novel 2D-waveguiding solar concentrator

R. Huang, Y. Liu, C. Madsen

Proceedings Volume 9175, 91750N (2014) https://doi.org/10.1117/12.2061249

KEYWORDS: Waveguides, Solar concentrators, Mirrors, Solar cells, Geometrical optics, Polymethylmethacrylate, Light wave propagation, Photovoltaics, Microlens array, Reflection

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Proceedings Article | 29 April 2010 Paper

A novel NLFM waveform generator using tunable integrated optical ring resonators: simulation and proof of concept experiment

D. Adams, W. Snider, C. Madsen

Proceedings Volume 7684, 76841A (2010) https://doi.org/10.1117/12.850362

KEYWORDS: Resonators, Integrated optics, Refractive index, Modulators, Modulation, LIDAR, Optical simulations, Signal attenuation, Silicon, Waveguides

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Proceedings Article | 18 February 2010 Paper

Integration of chalcogenide and titanium-diffused lithium-niobate waveguides

Mehmet Solmaz, Christi Madsen

Proceedings Volume 7579, 75790E (2010) https://doi.org/10.1117/12.853096

KEYWORDS: Waveguides, Resonators, Chalcogenides, Wave propagation, Titanium, Diffusion, Modulators, Lithium niobate, Cladding, Integrated optics

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Proceedings Article | 16 February 2010 Paper

Analysis of polarization-coupled infinite impulse response optical filters

Christi Madsen, Rohit Patnaik

Proceedings Volume 7605, 76050P (2010) https://doi.org/10.1117/12.845920

KEYWORDS: Polarization, Optical filters, Resonators, Waveguides, Wavelength division multiplexing, Birefringence, Phase shifts, Signal attenuation, Infinite impulse response filters, Electrochemical etching

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Proceedings Article | 16 February 2010 Paper

Selective co-doped erbium Ti:LiNbO3 waveguide amplifiers

Rafael Salas-Montiel, Mehmet Solmaz, Wee Chong Tan, Xiaomin Song, William Snider, Christi Madsen

Proceedings Volume 7605, 76050L (2010) https://doi.org/10.1117/12.845923

KEYWORDS: Erbium, Waveguides, Titanium, Optical amplifiers, Diffusion, Absorption, Near field optics, Refractive index, Optical fabrication, Integrated optics

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Proceedings Article | 16 April 2008 Paper

Real-time processing of a phase-sensitive distributed fiber optic perimeter sensor

C. Madsen, T. Snider, R. Atkins, J. Simcik

Proceedings Volume 6943, 694310 (2008) https://doi.org/10.1117/12.777987

KEYWORDS: Field programmable gate arrays, Signal processing, Fiber optics sensors, Sensors, Data processing, Fiber optics, Ferroelectric materials, Signal detection, Reflectometry, Roads

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Proceedings Article | 12 February 2008 Paper

Optical waveguide gratings in chalcogenide glass

Xin Xia, Mehmet Solmaz, Hyunsoo Park, Xing Cheng, Christi Madsen

Proceedings Volume 6896, 689607 (2008) https://doi.org/10.1117/12.768584

KEYWORDS: Electron beam lithography, Nanoimprint lithography, Chalcogenide glass, Waveguides, Polymethylmethacrylate, Reactive ion etching, Thin films, Glasses, Etching, Crystals

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Proceedings Article | 8 February 2008 Paper

High-index-contrast chalcogenide waveguides

Christi Madsen, Mehmet Solmaz, Robert Atkins

Proceedings Volume 6897, 689703 (2008) https://doi.org/10.1117/12.768583

KEYWORDS: Waveguides, Chalcogenides, Refractive index, Polarization, Electro optics, Overlay metrology, Chalcogenide glass, Silica, Glasses, Reactive ion etching

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Proceedings Article | 12 October 2007 Paper

High frequency Pound-Drever-Hall sensing of ring resonator cavities

J. Chambers, Christi Madsen, Haiqiao Lin

Proceedings Volume 6770, 67700W (2007) https://doi.org/10.1117/12.752607

KEYWORDS: Resonators, Modulation, Interference (communication), Sensors, Fabry–Perot interferometers, Laser resonators, Signal detection, Phase shift keying, Feedback control, Environmental sensing

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Proceedings Article | 12 October 2007 Paper

Intruder signature analysis from a phase-sensitive distributed fiber-optic perimeter sensor

C. Madsen, T. Bae, T. Snider

Proceedings Volume 6770, 67700K (2007) https://doi.org/10.1117/12.735244

KEYWORDS: Fiber optics sensors, Sensors, Signal processing, Signal detection, Roads, Fiber optics, Data acquisition, Time-frequency analysis, Buildings, Reflectometry

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Proceedings Article | 25 September 2007 Paper

Vertically integrated As2S3 waveguides on lithium niobate waveguides

Mehmet Solmaz, Robert Atkins, Jim Gardner, Christi Madsen

Proceedings Volume 6760, 676009 (2007) https://doi.org/10.1117/12.734703

KEYWORDS: Waveguides, Polarization, Chalcogenides, Arsenic, Lithium niobate, Refractive index, Chalcogenide glass, Integration, Mid-IR, Titanium

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Proceedings Article | 17 October 2006 Paper

Silicon-on-lithium niobate waveguides for mid-infrared

Mehmet Solmaz, Christi Madsen

Proceedings Volume 6386, 63860F (2006) https://doi.org/10.1117/12.691089

KEYWORDS: Silicon, Waveguides, Mid-IR, Quantum cascade lasers, Refractive index, Amorphous silicon, Overlay metrology, Lithium niobate, Silicon films, Crystals

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Proceedings Article | 12 May 2006 Paper

Optical time-frequency scaling for signal processing applications

C. Madsen, A. Chintanpalli

Proceedings Volume 6243, 624311 (2006) https://doi.org/10.1117/12.682466

KEYWORDS: Optical filters, Picosecond phenomena, Wavelets, Filtering (signal processing), Signal processing, Linear filtering, Electronic filtering, Time-frequency analysis, Modulators, Wavelet transforms

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Proceedings Article | 24 February 2006 Paper

Fast amplitude and delay measurement for characterization of integrated optic devices

M. Thompson, H. Zhu, W. Rivera, M. Solmaz, D. Adams, C. Madsen

Proceedings Volume 6123, 612304 (2006) https://doi.org/10.1117/12.645911

KEYWORDS: Phase measurement, Frequency modulation, Fiber Bragg gratings, Modulation, Fermium, Phase shift keying, Sensors, Laser sources, Integrated optics, Data acquisition

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Showing 5 of 34 publications

Conference Committee Involvement (1)

Integrated Optics: Devices, Materials, and Technologies XI

22 January 2007 | San Jose, California, United States

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