Dr. Quandou Wang Profile

Dr. Quandou Wang

Sr. Optical Test Architect

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 18 August 2018 Paper

Characterization and operation optimization of large aperture optical interferometers using binary pseudorandom array test standards

Quandou Wang, Valeriy Yashchuk, Sergey Babin, Stefano Cabrini, Ulf Griesmann, Ian Lacey, Keiko Munechika, Carlos Pina-Hernandez

Proceedings Volume 10749, 107490R (2018) https://doi.org/10.1117/12.2322011

KEYWORDS: Interferometers, Fizeau interferometers, Spatial frequencies, Modulation transfer functions, Visualization, Monochromatic aberrations

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SPIE Journal Paper | 23 October 2013 Open Access

Versatile bilayer resist for laser lithography at 405 nm on glass substrates

Quandou Wang, Ulf Griesmann

OE, Vol. 52, Issue 10, 105104, (October 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.105104

KEYWORDS: Glasses, Lithography, Photoresist materials, Chromium, Reflectivity, Antireflective coatings, Computer generated holography, Refractive index, Photomasks, Optical lithography

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Proceedings Article | 7 September 2013 Paper

Holographic radius test plates

Ulf Griesmann, Quandou Wang, Johannes Soons

Proceedings Volume 8838, 88380I (2013) https://doi.org/10.1117/12.2024890

KEYWORDS: Optical spheres, Lenses, Spherical lenses, Interferometers, Wavefronts, Lens design, Confocal microscopy, Optical fabrication, Error analysis, Holography

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SPIE Journal Paper | 1 September 2010

Spatially resolved height response of phase-shifting interferometers measured using a patterned mirror with varying spatial frequency

Jiyoung Chu, Quandou Wang, John Lehan, Guangjun Gao, Ulf Griesmann

OE, Vol. 49, Issue 09, 095601, (September 2010) https://doi.org/10.1117/12.10.1117/1.3488052

KEYWORDS: Interferometers, Mirrors, Spatial frequencies, Phase shifts, Sensors, Imaging systems, Optical engineering, Charge-coupled devices, Image resolution, Standards development

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Proceedings Article | 11 August 2008 Paper

Measuring the phase transfer function of a phase-shifting interferometer

Guangjun Gao, Jiyoung Chu, John Lehan, Ulf Griesmann, Quandou Wang

Proceedings Volume 7064, 70640C (2008) https://doi.org/10.1117/12.795243

KEYWORDS: Spatial frequencies, Interferometers, Mirrors, Silica, Imaging systems, Chromium, Phase shifts, Modulation transfer functions, Photoresist materials, Lithography

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SPIE Journal Paper | 1 September 2007

Three-flat tests including mounting-induced deformations

Ulf Griesmann, Quandou Wang, Johannes Soons

OE, Vol. 46, Issue 09, 093601, (September 2007) https://doi.org/10.1117/12.10.1117/1.2784531

KEYWORDS: Wavefronts, Mirrors, Interferometers, Optical engineering, Calibration, Interferometry, Sensors, Metrology, Collimation, Error analysis

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Proceedings Article | 9 December 2005 Paper

Interferometric thickness calibration of 300 mm silicon wafers

Quandou Wang, Robert Polvani, Ulf Griesmann

Proceedings Volume 6024, 602426 (2005) https://doi.org/10.1117/12.666951

KEYWORDS: Semiconducting wafers, Interferometers, Refractive index, Silicon, Wafer-level optics, Silica, Manufacturing, Calibration, Infrared radiation, Wafer testing

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Proceedings Article | 20 August 2005 Paper

A simple ball averager for reference sphere calibrations

Johannes Soons, Quandou Wang, Ulf Griesmann, Remi Carakos

Proceedings Volume 5869, 58690S (2005) https://doi.org/10.1117/12.614992

KEYWORDS: Calibration, Wavefronts, Optical spheres, Interferometers, Spherical lenses, Computer simulations, Glasses, Solids, Standards development, Precision optics

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Proceedings Article | 18 August 2005 Paper

Uncertainties in aspheric profile measurements with the geometry measuring machine at NIST

Lahsen Assoufid, John Stoup, Ulf Griesmann, Quandou Wang, Byoung Kim, Nadia Machkour-Deshayes, Johannes Soons

Proceedings Volume 5878, 58780D (2005) https://doi.org/10.1117/12.615398

KEYWORDS: Sensors, Interferometers, Mirrors, Calibration, Aspheric lenses, Interferometry, Beam splitters, Imaging systems, Metrology, Spherical lenses

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Proceedings Article | 11 December 2003 Paper

Testing highly aberrated large optics with a Shack-Hartmann wavefront sensor

Thomas Raymond, David Neal, Quandou Wang, Paul Pulaski, Daniel Neal, Ulf Griesmann

Proceedings Volume 5162, (2003) https://doi.org/10.1117/12.510795

KEYWORDS: Semiconducting wafers, Wavefronts, Wavefront sensors, Optical testing, Wafer-level optics, Sensors, Mirrors, Turbulence, Interferometers, Silica

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Proceedings Article | 27 December 2001 Paper

Manufacturing and testing of two off-axis aspherical mirrors

Zhongyu Zhang, Fengdong Zhang, Zhicheng Weng, Quandou Wang, Xuejun Zhang

Proceedings Volume 4451, (2001) https://doi.org/10.1117/12.453609

KEYWORDS: Mirrors, Off axis mirrors, Polishing, Optics manufacturing, Manufacturing, Optical spheres, Aspheric lenses, Tolerancing, Photography, Design for manufacturability

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Proceedings Article | 6 October 2000 Paper

Recent progress on asphere manufacturing and testing at CIOM

Quandou Wang, Xuejun Zhang, Zhongyu Zhang, Jingchi Yu

Proceedings Volume 4231, (2000) https://doi.org/10.1117/12.402743

KEYWORDS: Mirrors, Polishing, Aspheric lenses, Manufacturing, Off axis mirrors, Surface finishing, Optics manufacturing, Optical spheres, Aspheric optics, Algorithm development

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Proceedings Article | 6 October 2000 Paper

Novel profilometer with dual digital length gauge for large aspheric measurements

Quandou Wang, Xuejun Zhang, Jingchi Yu, Zhongyu Zhang

Proceedings Volume 4231, (2000) https://doi.org/10.1117/12.402789

KEYWORDS: Profilometers, Surface finishing, Data processing, Aspheric lenses, Optical fabrication, Head, Mirrors, Motion controllers, Polishing, Servomechanisms

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SPIE Journal Paper | 1 December 1997

Analysis of residual fabrication errors for computer controlled polishing aspherical mirrors

Xuejun Zhang, Jingchi Yu, Zhongyu Zhang, Quandou Wang, Weiping Zheng

OE, Vol. 36, Issue 12, (December 1997) https://doi.org/10.1117/12.10.1117/1.601578

KEYWORDS: Surface finishing, Polishing, Error analysis, Mirrors, Zernike polynomials, Wavefronts, Interferometers, Optical fabrication, Spherical lenses, Spatial frequencies

Showing 5 of 14 publications

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