Dr. Hongchang Wang Profile

Dr. Hongchang Wang

at Diamond Light Source Ltd

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 14 October 2022 Open Access

Practical implementations of speckle-based phase-retrieval methods in Python and GPU for tomography

Nghia Vo, Hongchang Wang, Lingfei Hu, Tunhe Zhou, Marie-Christine Zdora, Hans Deyhle, Robert Atwood, Michael Drakopoulos

Proceedings Volume 12242, 122420E (2022) https://doi.org/10.1117/12.2636834

KEYWORDS: Speckle analysis, Phase contrast, Open source software, Tomography, X-ray imaging, Image processing

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Proceedings Article | 21 August 2020 Open Access

Perturbation perspective of partial coherence discussion on imperfect x-ray optical elements

Lingfei Hu, John Sutter, Hongchang Wang, Kawal Sawhney

Proceedings Volume 11493, 114930D (2020) https://doi.org/10.1117/12.2567207

KEYWORDS: Optical components, Mirrors, X-ray optics, X-rays, Fourier transforms, Optical simulations, Coherence (optics), Distortion, Synchrotron radiation, Synchrotron radiation instrumentation, Free electron lasers

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Proceedings Article | 9 September 2019 Open Access

Ion beam figuring and optical metrology system for synchrotron x-ray mirrors

Matthew Hand, Simon Alcock, Michael Hillman, Richard Littlewood, Simone Moriconi, Hongchang Wang, Kawal Sawhney

Proceedings Volume 11109, 111090A (2019) https://doi.org/10.1117/12.2528463

KEYWORDS: Ion beams, Ions, Ion beam finishing, Mirrors, Metrology, X-rays, X-ray optics, Synchrotrons, Optical metrology, Optics manufacturing

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Proceedings Article | 7 September 2017 Open Access

Speckle-based portable device for in-situ metrology of x-ray mirrors at Diamond Light Source

Hongchang Wang, Yogesh Kashyap, Tunhe Zhou, Kawal Sawhney

Proceedings Volume 10385, 1038504 (2017) https://doi.org/10.1117/12.2274780

KEYWORDS: X-rays, Metrology, Mirrors, Diamond, Speckle, Synchrotrons, X-ray characterization, Light sources, Synchrotron radiation, In situ metrology

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Proceedings Article | 23 August 2017 Open Access

Speckle-based at-wavelength metrology of x-ray optics at Diamond Light Source

Hongchang Wang, Tunhe Zhou, Yogesh Kashyap, Kawal Sawhney

Proceedings Volume 10388, 103880I (2017) https://doi.org/10.1117/12.2274781

KEYWORDS: X-ray optics, Metrology, X-rays, Speckle, Synchrotron radiation, Mirrors, Diamond, In situ metrology, Synchrotrons, Optical testing

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Proceedings Article | 8 September 2016 Open Access

X-ray beam expansion by the application of re-entrant surface profiles to deformable bimorph mirrors

John Sutter, Simon Alcock, Yogesh Kashyap, Ioana Nistea, Hongchang Wang, Kawal Sawhney

Proceedings Volume 9965, 99650E (2016) https://doi.org/10.1117/12.2239116

KEYWORDS: Mirrors, X-rays, Deformable mirrors, Surface finishing, Polishing, Surface finishing, Deformable mirrors, Electrodes, Diamond, Light sources, Speckle, Beam shaping

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