Prof. Genrui Cao Profile

Prof. Genrui Cao

at Beijing Institute of Technology

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 28 May 2014 Paper

Study on the stitching interferometry for the surface profile measurement of a large aperture component

Weirui Zhao, Lirong Qiu, Weiqian Zhao, Genrui Cao

Proceedings Volume 9110, 91100W (2014) https://doi.org/10.1117/12.2053182

KEYWORDS: Wavefronts, Stitching interferometry, Mirrors, Zernike polynomials, Interferometers, Phase shifts, Phase shifting, Computing systems, Spherical lenses, Optoelectronics

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Proceedings Article | 13 September 2012 Paper

A real-time adaptive phase-shifting interferometry

Weirui Zhao, Genrui Cao

Proceedings Volume 8493, 849313 (2012) https://doi.org/10.1117/12.929177

KEYWORDS: Phase shifts, Modulation, Phase interferometry, Phase shift keying, Sensors, Bragg cells, Interferometry, Interferometers, Beam splitters, Optical testing

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Proceedings Article | 23 May 2011 Paper

An active co-phasing imaging testbed with segmented mirrors

Weirui Zhao, Genrui Cao

Proceedings Volume 8044, 80440X (2011) https://doi.org/10.1117/12.883590

KEYWORDS: Image segmentation, Segmented mirrors, Error analysis, Interferometers, Actuators, Active optics, Mirrors, Spherical lenses, Fringe analysis, Beam splitters

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Proceedings Article | 19 February 2008 Paper

Criterion of phasing in the presence of segment aberrations

Shanshan Wang, Qiudong Zhu, Genrui Cao, Xiao Wang

Proceedings Volume 6625, 66251A (2008) https://doi.org/10.1117/12.791206

KEYWORDS: Sensors, Image segmentation, Wavefronts, Telescopes, Mirrors, Image quality, Error analysis, Segmented mirrors, Chromium, Wavefront sensors

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Proceedings Article | 28 November 2007 Paper

The research on electric method for testing co-phasing error

Weirui Zhao, Genrui Cao

Proceedings Volume 6834, 68340C (2007) https://doi.org/10.1117/12.757162

KEYWORDS: Capacitance, Mirrors, Sensors, Electrodes, Image segmentation, Telescopes, Electric field sensors, Optical amplifiers, Optical testing, Interferometers

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Proceedings Article | 20 January 2005 Paper

Single steady frequency and narrow-linewidth external cavity semiconductor laser

Weirui Zhao, Genrui Cao

Proceedings Volume 5628, (2005) https://doi.org/10.1117/12.576625

KEYWORDS: Semiconductor lasers, Control systems, Collimators, Diffraction, Diffraction gratings, Modulation, Reflectivity, Reflection, Optical components, Laser resonators

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Proceedings Article | 29 April 2003 Paper

Diagnostic system for the microgravity experiments on marangoni drop migrations

P. Zhang, F. Liu, H. Lin, J.C. Xie, Genrui Cao

Proceedings Volume 5058, (2003) https://doi.org/10.1117/12.509919

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Proceedings Article | 5 September 2002 Paper

Correction capability of an active mirror

Yang Yu, Genrui Cao

Proceedings Volume 4926, (2002) https://doi.org/10.1117/12.481697

KEYWORDS: Actuators, Mirrors, Disk lasers, Finite element methods, Distortion, Active optics, Chemical elements, Optics manufacturing, Zernike polynomials, Wavefronts

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Proceedings Article | 5 September 2002 Paper

Mini-adaptive optics system and its experiments

Xinqi Hu, Xin Yu, Dazun Zhao, Genrui Cao, Sen Wang, Weijie Hu, Yuesong Jiang

Proceedings Volume 4926, (2002) https://doi.org/10.1117/12.481668

KEYWORDS: Digital signal processing, Adaptive optics, Deformable mirrors, Mirrors, Sensors, Control systems, Image quality, Reflectivity, Control systems design, Image sensors

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Proceedings Article | 5 September 2002 Paper

Self-referenced Hartmann testing: radial slope testing

Peng Su, Yang Yu, Qiudong Zhu, Genrui Cao

Proceedings Volume 4926, (2002) https://doi.org/10.1117/12.481683

KEYWORDS: Wavefronts, Optical testing, Wavefront sensors, Charge-coupled devices, Satellites, Data processing, Computer simulations, Stars, Visualization, Optoelectronics

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Proceedings Article | 6 October 2000 Paper

Novel adaptive phase-shifting interferometry

Weirui Zhao, Genrui Cao, Junqi Ma

Proceedings Volume 4231, (2000) https://doi.org/10.1117/12.402828

KEYWORDS: Modulation, Phase shift keying, Phase interferometry, Interferometers, Sensors, Bragg cells, Phase shifts, Signal to noise ratio, Interferometry, Optical testing

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Proceedings Article | 6 October 2000 Paper

Method of measurement for high-precision aspherical mirrors

Lieguo Liang, Genrui Cao

Proceedings Volume 4231, (2000) https://doi.org/10.1117/12.402846

KEYWORDS: Mirrors, Computer simulations, Interferometry, Optical testing, Optical components, Mirror pointing, Error analysis, Computing systems, Spherical lenses, Argon

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Proceedings Article | 28 September 1999 Paper

Microcomputer-controlled scanning Fabry-Perot interferometer

Weirui Zhao, Naiwen He, Genrui Cao

Proceedings Volume 3786, (1999) https://doi.org/10.1117/12.363834

KEYWORDS: Capacitance, Fabry–Perot interferometers, Fabry–Perot interferometry, Actuators, Mirrors, Calibration, Process control, Interferometers, Control systems, Capacitors

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Proceedings Article | 1 November 1997 Paper

Study of the bimorph deformable mirror

Genrui Cao, Q. Yang

Proceedings Volume 3134, (1997) https://doi.org/10.1117/12.279137

KEYWORDS: Electrodes, Mirrors, Adaptive optics, Deformable mirrors, Zernike polynomials, Mirror pointing, Analytical research, Actuators, Distortion, Astronomy

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Proceedings Article | 8 September 1995 Paper

Research on calibration technique for a high-precision optical angle gauge

Jiaming Lin, Genrui Cao, Datu Su

Proceedings Volume 2536, (1995) https://doi.org/10.1117/12.218459

KEYWORDS: Calibration, Autocollimators, Standards development, Metrology, Mirrors, Beam splitters, Environmental sensing, Measurement devices, Interferometers, Refractive index

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Proceedings Article | 30 May 1995 Paper

Photon-counting image-acquisition technique and its applications

Genrui Cao, Xin Yu, Xinqi Hu

Proceedings Volume 2513, (1995) https://doi.org/10.1117/12.209652

KEYWORDS: Photon counting, Imaging systems, CCD cameras, Wavefront sensors, Image intensifiers, Image acquisition, Sensors, Single photon, Adaptive optics, Calibration

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SPIE Journal Paper | 1 July 1994

Accuracy analysis of a Hartmann-Shack wavefront sensor operated with a faint object

Genrui Cao, Xin Yu

OE, Vol. 33, Issue 07, (July 1994) https://doi.org/10.1117/12.10.1117/12.169716

KEYWORDS: Wavefront sensors, Sensors, Error analysis, Image sensors, Photodetectors, Interference (communication), Charge-coupled devices, Signal detection, Photon counting, Image intensifiers

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Proceedings Article | 10 December 1992 Paper

Study on the Hartmann-Shack wavefront sensor

Genrui Cao, Xin Yu

Proceedings Volume 1752, (1992) https://doi.org/10.1117/12.130729

KEYWORDS: Wavefront sensors, Sensors, Photodetectors, Interference (communication), Error analysis, Wavefronts, Image intensifiers, Signal detection, Photon counting, Chromium

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Proceedings Article | 1 November 1990 Paper

Limitation of wavefront tilt sensor in adaptive astronomical telescope

Genrui Cao, Xin Yu, Ruowei Gu, Renzhong Zhou

Proceedings Volume 1334, (1990) https://doi.org/10.1117/12.22842

KEYWORDS: Wavefronts, Sensors, Wavefront sensors, Photon counting, Stars, Telescopes, Astronomical telescopes, Calibration, Space telescopes, Quantum efficiency

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