Dr. Taogeng Zhou Profile

Dr. Taogeng Zhou

at Beijing Institute of Technology

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Publications (13)

Proceedings Article | 18 January 2019 Paper

Two methods comparison and verification for monochromator calibration of wavelength

Changshi Wang, Yingwei He, Haiyong Gan, Guojin Feng, Junchao Zhang, Yingyi Gui, Limin Xiong, Taogeng Zhou, Lin Li

Proceedings Volume 10839, 108390F (2019) https://doi.org/10.1117/12.2504882

KEYWORDS: Monochromators, Lamps, Mercury, Light sources, Calibration, Fourier transforms, Spectroscopy, Light, Mirrors, Off axis mirrors

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Proceedings Article | 7 November 2018 Paper

Calibration of monochromator wavelength based on continuous spectrum light source and Fourier transform spectroradiometer

Changshi Wang, Yingwei He, Haiyong Gan, Guojin Feng, Junchao Zhang, Yingyi Gui, Limin Xiong, Taogeng Zhou, Lin Li

Proceedings Volume 10819, 108191P (2018) https://doi.org/10.1117/12.2501177

KEYWORDS: Lamps, Monochromators, Calibration, Light sources, Fourier transforms, Mercury, Neon, Error analysis, Light, Mirrors

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The monochromator has been widely used in the field of optical precision measurement. It can effectively separate the monochromatic light of the specific wavelength required for the experiment from a complex spectrum and a continuous spectrum light source. The wavelength accuracy of a monochromator is an important indicator of its performance，and the research of wavelength accuracy calibration methods to improve measurement accuracy is a hot theme for researchers around the world.When the monochromator is utilized for calibrating the wavelength in the ultraviolet, visible, and near-infrared region, low-pressure discharged lamps, such as mercury lamps and neon lamps, are usually used to calibrate on the well-known limited atomic emission lines of lamp to obtain the wavelength deviation value at the wavelength points of these lines.For some high-precision requirements, for example, when measuring the spectral responsivity of a reference solar cell using a tunable laser as light source, it is difficult for these discrete and finite lines to fully satisfy the demand.To solve this problem, a new method based on combination of continuous spectrum light source and fourier transform spectroradiometer was used. A calibrated experimental optical path was successfully built, and the wavelength deviation values of 322 wavelength points from 400 nm to 2000 nm were obtained. The optimal measurement repeatability reached 0.3 pm, which met the need for high-precision measurement requirement. As a comparison, a low-pressure discharged lamp method was also used. Using a mercury lamp and a neon lamp, a wavelength calibration experiment was performed on the same monochromator in the same wavelength range, and only 20 wavelength deviation values were obtained at its atomic emission lines wavelength point. The number of wavelength deviation values is less than 6.5% of that of the new method.The new method proposed in this paper,which not only can significantly improve the quality of the monochromator calibration wavelength deviation values, but in which the obtained values are able to establish traceability to the international SI unit system, is an ideal wavelength accuracy calibration method.

Proceedings Article | 24 October 2017 Paper

Research on characteristics measurement of infrared defect tester

Ke-jia Zhang, Bi-feng Zhang, Li-min Xiong, Tao-geng Zhou, Jun-chao Zhang, Hai-feng Meng, Chuan Cai, Ying-wei He, Xiao-hui Li, Chang-shi Wang

Proceedings Volume 10460, 104601F (2017) https://doi.org/10.1117/12.2285194

KEYWORDS: Infrared cameras, Calibration

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Proceedings Article | 27 September 2016 Paper

Analysis of spectral mismatch error influences on short-circuit current measurement of reference solar cell

Chuan Cai, Yingwei He, Junchao Zhang, Limin Xiong, Taogeng Zhou, Haifeng Meng, Kejia Zhang, Bifeng Zhang

Proceedings Volume 9684, 96843U (2016) https://doi.org/10.1117/12.2243596

KEYWORDS: Error analysis, Solar cells, Calibration, Photovoltaics, Metrology, Laser optics, Spectral calibration, Light sources, Computer simulations, Silicon

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Proceedings Article | 31 December 2013 Paper

Human eye color difference threshold measurement system

Lin Liu, Taogeng Zhou

Proceedings Volume 9042, 90420S (2013) https://doi.org/10.1117/12.2034606

KEYWORDS: Integrating spheres, Color difference, Eye, Visualization, Color centers, Optical filters, Diagnostics, Integrated optics, Imaging systems, Optoelectronics

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Proceedings Article | 12 March 2008 Paper

Fiber point diffraction interferometer in measurement of spherical lens

Shuo Wu, Tao geng Zhou, Jia ming Lin, Lin feng Chen, Liang Nie, Ding guo Sha

Proceedings Volume 6624, 662415 (2008) https://doi.org/10.1117/12.791112

KEYWORDS: Spherical lenses, Wavefronts, Mirrors, Point diffraction interferometers, Diffraction, Interferometers, Photovoltaics, Fiber lasers, Gemini Planet Imager, Single mode fibers

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Proceedings Article | 3 March 2008 Paper

Analysis for MRTD and DMRTD based on contrast simulation

Lingfeng Chen, Xusheng Zhang, Taogeng Zhou, Jiaming Lin

Proceedings Volume 6621, 66211M (2008) https://doi.org/10.1117/12.790859

KEYWORDS: Minimum resolvable temperature difference, Optical simulations, Sensors, Spatial frequencies, Numerical simulations, Staring arrays, Thermography, Infrared radiation, Target detection, Phase shift keying

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Proceedings Article | 28 November 2007 Paper

Key techniques in an absolute measurement method of spherical lens

Shuo Wu, Tao geng Zhou, Ding guo Sha, Jia ming Lin, Lin feng Chen

Proceedings Volume 6834, 683435 (2007) https://doi.org/10.1117/12.757044

KEYWORDS: Wavefronts, Spherical lenses, Mirrors, Phase shifting, Zernike polynomials, Interferometers, Photovoltaics, Gemini Planet Imager, Semiconductor lasers, Optical testing

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Proceedings Article | 27 November 2007 Paper

Wavefront fitting and evaluation of fiber point diffraction interferometer

Shuo Wu, Ding guo Sha, Jia ming Lin, Tao geng Zhou, Ling feng Chen, Liang Nie

Proceedings Volume 6723, 67230P (2007) https://doi.org/10.1117/12.782970

KEYWORDS: Wavefronts, Zernike polynomials, Spherical lenses, Mirrors, Point diffraction interferometers, Interferometers, Phase shifting, Metals, Optical testing, Numerical simulations

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Proceedings Article | 29 January 2007 Paper

The comparison of two kinds of fiber phase shifting point-diffraction interferometer

Lingfeng Chen, Liang Nie, Taogeng Zhou, Dingguo Sha

Proceedings Volume 6279, 627974 (2007) https://doi.org/10.1117/12.725886

KEYWORDS: Wavefronts, Spherical lenses, Interferometers, Mirrors, Phase shifting, Optical testing, Beam splitters, Phase shifts, Point diffraction interferometers, Optical fibers

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Proceedings Article | 6 November 2006 Paper

Research on the fiber point-diffraction interferometer for spherical figure measurement

Lingfeng Chen, Liang Nie, Taogeng Zhou, Dingguo Sha

Proceedings Volume 6357, 63574J (2006) https://doi.org/10.1117/12.717373

KEYWORDS: Spherical lenses, Wavefronts, Interferometers, Mirrors, Laser sources, YAG lasers, Error analysis, Optical testing, Diffraction, Beam splitters

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Proceedings Article | 20 September 2002 Paper

Research on the linear continuous attenuator technique of large caliber

Jiaming Lin, Qingsheng Zheng, Taogeng Zhou, Dingguo Sha, Datu Su

Proceedings Volume 4927, (2002) https://doi.org/10.1117/12.471203

KEYWORDS: Attenuators, Calibration, Laser range finders, Signal attenuation, Mass attenuation coefficient, Design for manufacturability, Reflection, Manufacturing, Glasses, Optics manufacturing

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Proceedings Article | 6 October 2000 Paper

Computer-aided alignment method for large and complex optical systems

Huilan Liu, Hongqiang Xu, Taogeng Zhou, Jun Li, Dingguo Sha

Proceedings Volume 4231, (2000) https://doi.org/10.1117/12.402841

KEYWORDS: Wavefronts, Interferometry, Optical alignment, Collimation, Computing systems, Atrial fibrillation, Image quality standards, Zernike polynomials, Laser interferometry, Interferometers

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Showing 5 of 13 publications

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