Dr. Chiayu Ai Profile

Dr. Chiayu Ai

optical engineer

SPIE Involvement:

Author

Proceedings Article | 8 December 1997 Paper

Optical and mechanical design considerations in the construction of a 24-in. phase-shifting interferometer

Joseph Lamb, James Semrad, James Wyant, Chiayu Ai, Robert Knowlden, Erik Novak, John Downie, Robert Wolfe

Proceedings Volume 3047, (1997) https://doi.org/10.1117/12.294328

KEYWORDS: Interferometers, Phase shifts, Imaging systems, Collimators, Optics manufacturing, Optical design, Phase shifting, Fourier transforms, Mechanical engineering, Laser sources

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Proceedings Article | 1 November 1997 Paper

Errors caused by nearly parallel optical elements in a laser Fizeau interferometer utilizing strictly coherent imaging

Erik Novak, Chiayu Ai, James Wyant

Proceedings Volume 3134, (1997) https://doi.org/10.1117/12.295146

KEYWORDS: Glasses, Imaging systems, Optical components, Diffusers, Coherence imaging, Fizeau interferometers, Phase measurement, Cameras, Charge-coupled devices, Coating

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Proceedings Article | 1 November 1997 Paper

Transfer function characterization of laser Fizeau interferometer for high-spatial-frequency phase measurements

Erik Novak, Chiayu Ai, James Wyant

Proceedings Volume 3134, (1997) https://doi.org/10.1117/12.295123

KEYWORDS: Spatial frequencies, Interferometers, Relays, Phase measurement, National Ignition Facility, Coherence imaging, Fizeau interferometers, Imaging systems, Zoom lenses, Phase shift keying

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Proceedings Article | 1 November 1997 Paper

Design of a 24-in. phase-shifting Fizeau interferometer

Chiayu Ai, Robert Knowlden, Joseph Lamb

Proceedings Volume 3134, (1997) https://doi.org/10.1117/12.295145

KEYWORDS: Wavefronts, Interferometers, Collimators, Polarization, Fizeau interferometers, Mirrors, Glasses, Birefringence, Aspheric lenses, Phase shifts

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Proceedings Article | 1 November 1997 Paper

IR interferometers using modern cameras

Chiayu Ai

Proceedings Volume 3134, (1997) https://doi.org/10.1117/12.295147

KEYWORDS: Cameras, Interferometers, Surface finishing, Infrared cameras, Spatial resolution, Phase shifts, Radium, Reflectivity, Infrared imaging, Sensors

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Proceedings Article | 20 November 1996 Paper

Optical resolution of phase measurements of laser Fizeau interferometer

Erik Novak, Chiayu Ai, James Wyant

Proceedings Volume 2870, (1996) https://doi.org/10.1117/12.259942

KEYWORDS: Spatial frequencies, Coherence imaging, Relays, Interferometers, Imaging systems, Silica, Fizeau interferometers, Phase measurement, Phase shift keying, Wave propagation

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Proceedings Article | 20 November 1996 Paper

Design of a 24-in. phase shifting interferometer

Chiayu Ai, Robert Knowlden, Joseph Lamb

Proceedings Volume 2870, (1996) https://doi.org/10.1117/12.259945

KEYWORDS: Interferometers, Phase shifting, Optical testing, National Ignition Facility, Optics manufacturing, Optical components, Diffraction, Phase shifts, Optical benches, CCD cameras

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Proceedings Article | 17 July 1996 Paper

Design of a 24-in. phase shifting Fizeau interferometer

Chiayu Ai, Robert Knowlden, Joseph Lamb

Proceedings Volume 2860, (1996) https://doi.org/10.1117/12.276334

KEYWORDS: Surface finishing, Glasses, Interferometers, Wavefronts, Reflection, Zoom lenses, Optical transfer functions, Modulation transfer functions, Fizeau interferometers, Polishing

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Proceedings Article | 1 February 1994 Paper

Testing an optical window of a small wedge angle

Chiayu Ai, James Wyant

Proceedings Volume 1994, (1994) https://doi.org/10.1117/12.167979

KEYWORDS: Wavefronts, Interferometers, Optical testing, Sensors, Glasses, Fizeau interferometers, Phase measurement, Phase shifts, Evolutionary algorithms

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Proceedings Article | 10 December 1993 Paper

Simple and effective phase unwrapping technique

Yiping Xu, Chiayu Ai

Proceedings Volume 2003, (1993) https://doi.org/10.1117/12.165458

KEYWORDS: Phase shift keying, Modulation, Reflectivity, Interferometry, Fringe analysis, Wavefronts, Image segmentation, Phase shifts, Mathematical morphology, Sensors

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Proceedings Article | 23 September 1993 Paper

New realistic 3D surface microtopography visualization technique

Yiping Xu, Chiayu Ai

Proceedings Volume 1915, (1993) https://doi.org/10.1117/12.157039

KEYWORDS: Reflectivity, Phase shifts, Wavefronts, Phase interferometry, Visualization, Light sources, 3D modeling, 3D image processing, Microscopes, 3D visualizations

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Proceedings Article | 15 December 1992 Paper

Absolute testing of flats using four data sets

Lianzhen Shao, Robert Parks, Chiayu Ai

Proceedings Volume 1776, (1992) https://doi.org/10.1117/12.139231

KEYWORDS: Calibration, UV optics, Spatial frequencies, Metrology, Optical calibration, Interferometry, Logic, Data centers, Roads, Ultraviolet radiation

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