Prof. Changhuei Yang Profile

Prof. Changhuei Yang

Professor at Caltech

SPIE Involvement:

Editorial Board Member: Advanced Photonics | Author

Publications (71)

Proceedings Article | 13 March 2024 Presentation

FPM-INR: Fourier ptychographic microscopy image stack reconstruction using implicit neural representation

Haowen Zhou, Brandon Feng, Steven Lin, Haiyun Guo, Mingshu Liang, Christopher Metzler, Changhuei Yang

Proceedings Volume PC12857, PC128570W (2024) https://doi.org/10.1117/12.3007004

KEYWORDS: Image restoration, Data storage, Microscopy, Data modeling, Reconstruction algorithms, Medical image reconstruction, Image quality, Image processing, Data archive systems, Biological samples

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Proceedings Article | 13 March 2024 Presentation

Improving pathology and life science research by leveraging computational microscopy and machine learning

Changhuei Yang

Proceedings Volume PC12852, PC1285203 (2024) https://doi.org/10.1117/12.3000231

KEYWORDS: Scientific research, Pathology, Microscopy, Life sciences, Machine learning, Deep learning

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Proceedings Article | 13 March 2024 Presentation

Computation in imaging: a survey of predictable and surprising developments

Changhuei Yang

Proceedings Volume PC12857, PC128570C (2024) https://doi.org/10.1117/12.3011861

KEYWORDS: Image processing, Computational imaging, Pathology, Microscopy

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Proceedings Article | 13 March 2024 Presentation

An affordable and compact laser device for real-time cerebral blood flow monitoring

Simon Mahler, Yu Xi Huang, Changhuei Yang

Proceedings Volume PC12850, PC1285009 (2024) https://doi.org/10.1117/12.3008157

KEYWORDS: Cerebral blood flow, Speckle, Portability, Brain, Visibility, Spectroscopy, Blood circulation, Speckle interferometry, Photonics, Traumatic brain injury

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Proceedings Article | 13 March 2024 Presentation

Complex-field and fluorescence microscopy using aperture scanning technique (CFAST) for studying rhizosphere organisms

Oumeng Zhang, Reinaldo Alcalde, Haowen Zhou, Siyuan Yin, Changhuei Yang

Proceedings Volume PC12848, PC1284802 (2024) https://doi.org/10.1117/12.3007534

KEYWORDS: Fluorescence imaging, Fluorescence, Biological imaging, Organisms, 3D image processing, Microscopes, Light sources and illumination, Tunable filters, Reflectors, Point spread functions

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Proceedings Article | 13 March 2024 Presentation

High-resolution, large field-of-view, label-free computational imaging using all analytical reconstruction algorithm

Ruizhi Cao, Cheng Shen, Changhuei Yang

Proceedings Volume PC12857, PC128570Y (2024) https://doi.org/10.1117/12.3000253

KEYWORDS: Reconstruction algorithms, Computational imaging, Testing and analysis, Imaging systems, Image restoration, Fourier transforms, Angle measurement, Aberration correction

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Proceedings Article | 13 March 2024 Presentation

Interferometric technique in speckle visibility spectroscopy (SVS) for blood flow decorrelation time measurements: advantages and limitations

Yu Xi Huang, Simon Mahler, Changhuei Yang

Proceedings Volume PC12828, PC128280N (2024) https://doi.org/10.1117/12.3008257

KEYWORDS: Speckle interferometry, Spectroscopy, Speckle, Visibility, Time metrology, Blood circulation, Holographic interferometry, Cerebral blood flow, Brain, Turbidity

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SPIE Journal Paper | 4 July 2023 Open Access

Complex-domain-enhancing neural network for large-scale coherent imaging

Xuyang Chang, Rifa Zhao, Shaowei Jiang, Cheng Shen, Guoan Zheng, Changhuei Yang, Liheng Bian

APN, Vol. 2, Issue 04, 046006, (July 2023) https://doi.org/10.1117/12.10.1117/1.APN.2.4.046006

KEYWORDS: Neural networks, Wavefronts, Coherence imaging, Biological imaging, Data modeling, Holography, Convolution, Super resolution, Image restoration, Education and training

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SPIE Journal Paper | 30 August 2022 Open Access

Optical imaging and spectroscopy for the study of the human brain: status report

Hasan Ayaz, Wesley Baker, Giles Blaney, David Boas, Heather Bortfeld, Kenneth Brady, Joshua Brake, Sabrina Brigadoi, Erin M. Buckley, Stefan Carp, Robert Cooper, Kyle Cowdrick, Joseph Culver, Ippeita Dan, Hamid Dehghani, Anna Devor, Turgut Durduran, Adam Eggebrecht, Lauren Emberson, Qianqian Fang, Sergio Fantini, Maria Angela Franceschini, Jonas Fischer, Judit Gervain, Joy Hirsch, Keum-Shik Hong, Roarke Horstmeyer, Jana Kainerstorfer, Tiffany Ko, Daniel Licht, Adam Liebert, Robert Luke, Jennifer Lynch, Jaume Mesquida, Rickson Mesquita, Noman Naseer, Sergio Novi, Felipe Orihuela-Espina, Thomas O'Sullivan, Darcy Peterka, Antonio Pifferi, Luca Pollonini, Angelo Sassaroli, João Ricardo Sato, Felix Scholkmann, Lorenzo Spinelli, Vivek Srinivasan, Keith St. Lawrence, Ilias Tachtsidis, Yunjie Tong, Alessandro Torricelli, Tara Urner, Heidrun Wabnitz, Martin Wolf, Ursula Wolf, Shiqi Xu, Changhuei Yang, Arjun Yodh, Meryem Yücel, Wenjun Zhou

NPh, Vol. 9, Issue S2, S24001, (August 2022) https://doi.org/10.1117/12.10.1117/1.NPh.9.S2.S24001

KEYWORDS: Brain, Near infrared spectroscopy, Neuroimaging, Imaging spectroscopy, Sensors, Optical imaging, Optical spectroscopy imaging, Optical spectroscopy, Spectroscopy, Tissue optics

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SPIE Journal Paper | 9 July 2022 Open Access

Analysis of postreconstruction digital refocusing in Fourier ptychographic microscopy

Haowen Zhou, Cheng Shen, Mingshu Liang, Changhuei Yang

OE, Vol. 61, Issue 07, 073102, (July 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.7.073102

KEYWORDS: Microscopy, Image processing, Phase retrieval, Digital imaging, Wavefronts, Imaging systems, Optical engineering, Image segmentation, Image quality, Stars

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SPIE Journal Paper | 27 April 2022 Open Access

Neurophotonic tools for microscopic measurements and manipulation: status report

Ahmed Abdelfattah, Srinivasa Rao Allu, Robert Campbell, Xiaojun Cheng, Tomáš Cižmár, Irene Costantini, Valentina Emiliani, Natalie Fomin-Thunemann, Ariel Gilad, Tomás Fernández Alfonso, Christopher G. Ferri, Andrew Harris, Elizabeth M. Hillman, Matthew Holt, Kivilcim Kiliç, Evan Miller, Rickson Mesquita, K.M. Naga Srinivas Nadella, U. Valentin Nägerl, Citlali Perez Campos, Francesca Puppo, Shy Shoham, R. Angus Silver, Vivek Srinivasan, Martin Thunemann, Lei Tian, Sergei Vinogradov, Flavia Vitale, Hana Uhlířová, Chris Xu, Mu-Han Yang, Yongxin Zhao, Sapna Ahuja, Taner Akkin, Joshua Brake, David Boas, Erin Buckley, Anderson Chen, Massimo De Vittorio, Anna Devor, Patrick Doran, Mirna El Khatib, Yeshaiahu Fainman, Xue Han, Ute Hochgeschwender, Na Ji, Evelyn Lake, Lei Li, Tianqi Li, Philipp Mächler, Yusuke Nasu, Axel Nimmerjahn, Petra Ondrácková, Francesco Pavone, Darcy Peterka, Filippo Pisano, Ferruccio Pisanello, Bernardo Sabatini, Sanaz Sadegh, Sava Sakadžic, Sanaya Shroff, Ruth Sims, Spencer Smith, Lin Tian, Thomas Troxler, Antoine Valera, Alipasha Vaziri, Lihong Wang, Changhuei Yang, Gary Yellen, Ofer Yizhar

NPh, Vol. 9, Issue S1, 013001, (April 2022) https://doi.org/10.1117/12.10.1117/1.NPh.9.S1.013001

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Proceedings Article | 2 March 2022 Presentation + Paper

Non-interferometric and non-iterative complex wave-field reconstruction based on Kramers-Kronig relations

Cheng Shen, Haowen Zhou, Changhuei Yang

Proceedings Volume 11970, 1197002 (2022) https://doi.org/10.1117/12.2608280

KEYWORDS: Reconstruction algorithms, Imaging systems, Coherence imaging, Holography, Fourier transforms, Synthetic aperture imaging

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Proceedings Article | 2 March 2022 Presentation

Non-line-of-sight imaging via wavefront shaping

Ruizhi Cao, Frederic de Goumoens, Baptiste Blochet, Jian Xu, Changhuei Yang

Proceedings Volume PC11969, PC119690H (2022) https://doi.org/10.1117/12.2624775

KEYWORDS: Wavefronts, Non-line-of-sight propagation, Scattering, Reflectivity, Diffraction

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Proceedings Article | 5 March 2021 Presentation + Paper

Diffusing wave spectroscopy: a unified treatment on temporal sampling and speckle ensemble methods

Jian Xu, Ali Jahromi, Changhuei Yang

Proceedings Volume 11629, 116291S (2021) https://doi.org/10.1117/12.2577036

KEYWORDS: Spectroscopy, Speckle, Signal to noise ratio, Sensors, Visibility, Statistical analysis, Speckle pattern, Signal detection, Signal analyzers

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Proceedings Article | 5 March 2021 Presentation

Fluorescence imaging through dynamic scattering media with and without using wavefront shaping

Yan Liu, Haowen Ruan, Jian Xu, Yujia Huang, Changhuei Yang

Proceedings Volume 11652, 116520N (2021) https://doi.org/10.1117/12.2583282

KEYWORDS: Luminescence, Ultrasonography, Speckle, Scattering media, Modulation, Scattering, Tissues, Optical imaging, Light scattering, In vivo imaging

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Proceedings Article | 9 March 2020 Presentation

Single-shot surface 3-D imaging by optical coherence factor (Conference Presentation)

Jian Xu, Ruizhi Cao, Michelle Cua, Changhuei Yang

Proceedings Volume 11245, 112450E (2020) https://doi.org/10.1117/12.2545024

KEYWORDS: Stereoscopy, Coherence (optics), Visibility, 3D image processing, Imaging systems, Light sources, Holography, Optical coherence tomography

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SPIE Journal Paper | 26 February 2020 Open Access

Investigating ultrasound–light interaction in scattering media

Yujia Huang, Michelle Cua, Joshua Brake, Yan Liu, Changhuei Yang

JBO, Vol. 25, Issue 02, 025002, (February 2020) https://doi.org/10.1117/12.10.1117/1.JBO.25.2.025002

KEYWORDS: Ultrasonography, Modulation, Light scattering, Particles, Scattering, Photons, Scattering media, Refractive index, Monte Carlo methods, Speckle

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Proceedings Article | 25 March 2019 Paper

Extending the wavelength range of multi-spectral microscope systems with Fourier ptychography

Antony Chi Shing Chan, Cheng Shen, Elliott Williams, Xiaoyu Lyu, Hangwen Lu, Craig Ives, Ali Hajimiri, Changhuei Yang

Proceedings Volume 10890, 108902O (2019) https://doi.org/10.1117/12.2510875

KEYWORDS: Microscopes, Aberration correction, Silicon, Near infrared, Imaging systems, Semiconducting wafers, Reflection, Calibration

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Proceedings Article | 4 March 2019 Presentation

Time-reversed ultrasonically encoded (TRUE) optical focusing through highly scattering ex vivo human cataractous lenses for congenital cataract treatment (Conference Presentation)

Yan Liu, Yuecheng Shen, Haowen Ruan, Frank Brodie, Terence T. Wong, Changhuei Yang, Lihong Wang

Proceedings Volume 10886, 1088602 (2019) https://doi.org/10.1117/12.2508994

KEYWORDS: Scattering, Lenses, Surgery, Retina, Light scattering, Wavefronts, Visual system, Opacity, Visualization

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Proceedings Article | 4 March 2019 Presentation

Massively parallel Fourier ptychographic phase imaging system for high-throughput screening of biological samples (Conference Presentation)

Antony Chi Shing Chan, Jinho Kim, An Pan, Changhuei Yang

Proceedings Volume 10881, 108810U (2019) https://doi.org/10.1117/12.2510303

KEYWORDS: Imaging systems, Phase imaging, Cameras, Luminescence, Objectives, Drug discovery, Absorbance, Microscopy, Microscopes, Light sources and illumination

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Proceedings Article | 15 March 2018 Presentation

Fourier ptychography for parallel microscopy (Conference Presentation)

Changhuei Yang

Proceedings Volume 10505, 1050502 (2018) https://doi.org/10.1117/12.2292555

KEYWORDS: Microscopy, Imaging systems, Microscopes, Plastic lenses, Temporal resolution, In vivo imaging

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Proceedings Article | 23 February 2018 Presentation + Paper

Time-reversed ultrasonically encoded (TRUE) focusing for deep-tissue optogenetic modulation

Joshua Brake, Haowen Ruan, J. Elliott Robinson, Yan Liu, Viviana Gradinaru, Changhuei Yang

Proceedings Volume 10502, 1050210 (2018) https://doi.org/10.1117/12.2288331

KEYWORDS: Phase conjugation, Tissue optics, Light scattering, Brain, Optogenetics, Scattering, Modulation, Wavefronts, Tissues, Neurons

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SPIE Journal Paper | 10 January 2018 Open Access

Time-reversed ultrasonically encoded optical focusing through highly scattering ex vivo human cataractous lenses

Yan Liu, Yuecheng Shen, Haowen Ruan, Frank L. Brodie, Terence T. W. Wong, Changhuei Yang, Lihong V. Wang

JBO, Vol. 23, Issue 01, 010501, (January 2018) https://doi.org/10.1117/12.10.1117/1.JBO.23.1.010501

KEYWORDS: Wavefronts, Light scattering, Scattering, Retina, Spatial light modulators, Surgery, Ultrasonics, Tissue optics, Lenses, Cameras

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Proceedings Article | 24 April 2017 Presentation

Quantitative phase imaging by pupil modulation different phase contrast (PMDPC) (Conference Presentation)

Hangwen Lu, Jaebum Chung, Xiaoze Ou, Changhuei Yang

Proceedings Volume 10074, 100740P (2017) https://doi.org/10.1117/12.2252576

KEYWORDS: Image resolution, Objectives, Modulation, Phase contrast, Spatial light modulators, Phase imaging, Phase shift keying, Imaging systems, Deconvolution, Optical components

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Proceedings Article | 24 April 2017 Presentation

Magnetic guidestar assisted light focusing through scattering media (Conference Presentation)

Haowen Ruan, Joshua Brake, Mooseok Jang, Changhuei Yang

Proceedings Volume 10073, 100730I (2017) https://doi.org/10.1117/12.2252997

KEYWORDS: Magnetism, Waveguides, Scattering media, Tissue optics, Biomedical optics, Light scattering, Wavefronts, Scattering, Optical proximity correction, Light

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Proceedings Article | 24 April 2017 Presentation

Incubator embedded cell culture imaging system (EmSight) based on Fourier ptychographic microscopy (Conference Presentation)

Jinho Kim, Beverley Henley, Charlene Kim, Henry Lester, Changhuei Yang

Proceedings Volume 10068, 100680X (2017) https://doi.org/10.1117/12.2249906

KEYWORDS: Imaging systems, Standards development, Microscopy, Microscopes, Objectives, Image resolution, Lenses, Optical sensors, Reconstruction algorithms, Detection and tracking algorithms

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Proceedings Article | 27 April 2016 Presentation

Focusing light in deep tissue with time-reversed ultrasound microbubble encoded light (Conference Presentation)

Haowen Ruan, Mooseok Jang, Changhuei Yang

Proceedings Volume 9717, 97171K (2016) https://doi.org/10.1117/12.2212042

KEYWORDS: Tissue optics, Ultrasonography, Wavefronts, Biomedical optics, Scattering, Photons, Phase conjugation, Optical proximity correction, Modulation, Tissues

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Proceedings Article | 27 April 2016 Presentation

Simultaneous fluorescence and high-resolution bright-field imaging with aberration correction over a wide field-of-view with Fourier ptychographic microscopy (FPM) (Conference Presentation)

Jaebum Chung, Jinho Kim, Xiaoze Ou, Roarke Horstmeyer, Changhuei Yang

Proceedings Volume 9713, 97130I (2016) https://doi.org/10.1117/12.2211974

KEYWORDS: Luminescence, Microscopy, Microscopes, Aberration correction, Deconvolution, Objectives, Image analysis, Image resolution, Signal to noise ratio, 3D acquisition

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Proceedings Article | 26 April 2016 Presentation

The relationship between decorrelation time and sample thickness in acute rat brain tissue slices (Conference Presentation)

Joshua Brake, Mooseok Jang, Changhuei Yang

Proceedings Volume 9707, 97070U (2016) https://doi.org/10.1117/12.2208972

KEYWORDS: Tissue optics, Biomedical optics, Wavefronts, Brain, Light scattering, Scattering, Spectroscopy, Biological research, Statistical analysis, Tissues

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SPIE Journal Paper | 16 December 2015 Open Access

Errata: Fourier ptychographic microscopy for filtration-based circulating tumor cell enumeration and analysis

Anthony Williams, Jaebum Chung, Xiaoze Ou, Guoan Zheng, Siddarth Rawal, Zheng Ao, Ram Datar, Changhuei Yang, Richard Cote

JBO, Vol. 20, Issue 12, 129802, (December 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.12.129802

KEYWORDS: Microscopy, Tumors, Biological research, Adaptive optics, Biomedical optics, Medicine, Pathology, Nanotechnology, Electrical engineering, Image resolution

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SPIE Journal Paper | 20 June 2014 Open Access

Fourier ptychographic microscopy for filtration-based circulating tumor cell enumeration and analysis

Anthony Williams, Jaebum Chung, Xiaoze Ou, Guoan Zheng, Siddarth Rawal, Zheng Ao, Ram Datar, Changhuei Yang, Richard Cote

JBO, Vol. 19, Issue 06, 066007, (June 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.6.066007

KEYWORDS: Tumors, Microscopy, Blood, Systems modeling, Microscopes, Imaging systems, Light emitting diodes, Standards development, Statistical modeling, Image processing

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SPIE Journal Paper | 17 March 2014 Open Access

Diffusion model for ultrasound-modulated light

Joseph Hollmann, Roarke Horstmeyer, Changhuei Yang, Charles DiMarzio

JBO, Vol. 19, Issue 03, 035005, (March 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.3.035005

KEYWORDS: Modulation, Diffusion, Scattering, Laser beam diagnostics, Finite-difference time-domain method, Light scattering, Tissue optics, Laser scattering, Refraction, Phase shift keying

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Proceedings Article | 12 March 2014 Paper

A model for ultrasound modulated light in a turbid medium

Joseph Hollmann, Roarke Horstmeyer, Changhuei Yang, Charles DiMarzio

Proceedings Volume 8949, 89490U (2014) https://doi.org/10.1117/12.2041179

KEYWORDS: Modulation, Tissue optics, Optical spheres, Ultrasonography, Scattering, Laser beam diagnostics, Refraction, Light scattering, Laser scattering, Phase shift keying

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Proceedings Article | 7 March 2014 Paper

Time-reversal optical focusing for biophotonics applications

Changhuei Yang

Proceedings Volume 8978, 89780K (2014) https://doi.org/10.1117/12.2042406

KEYWORDS: Tissue optics, Ultrasonography, Light scattering, Scattering, Geometrical optics, Tissues, Phase conjugation, Luminescence, Wavefronts, Transducers

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SPIE Journal Paper | 22 March 2013

Characterization of Talbot pattern illumination for scanning optical microscopy

Guangshuo Liu, Changhuei Yang, Jigang Wu

OE, Vol. 52, Issue 09, 091714, (March 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.9.091714

KEYWORDS: Optical microscopy, Microscopy, Image resolution, Illumination engineering, Computer simulations, Gaussian beams, Optical engineering, Image quality, Detection and tracking algorithms, Algorithms

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SPIE Journal Paper | 12 February 2013 Open Access

Analysis and modeling of an ultrasound-modulated guide star to increase the depth of focusing in a turbid medium

Joseph Hollmann, Roarke Horstmeyer, Changhuei Yang, Charles DiMarzio

JBO, Vol. 18, Issue 02, 025004, (February 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.2.025004

KEYWORDS: Tissue optics, Phase conjugation, Scattering, Channel projecting optics, Modulation, Adaptive optics, Tissues, Finite-difference time-domain method, Wavefronts, Refraction

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Proceedings Article | 12 February 2011 Paper

Boosting detection sensitivity by using a surface-wave-enabled darkfield aperture (SWEDA)

Guoan Zheng, Samuel Yang, Changhuei Yang

Proceedings Volume 7911, 79110X (2011) https://doi.org/10.1117/12.871044

KEYWORDS: Signal detection, Signal to noise ratio, Microscopes, Sensors, Surface plasmons, Polarization, Image transmission, Transmittance, CMOS sensors, Destructive interference

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SPIE Journal Paper | 1 March 2010 Open Access

Turbidity suppression from the ballistic to the diffusive regime in biological tissues using optical phase conjugation

Emily McDowell, Meng Cui, Ivo Vellekoop, Vahan Senekerimyan, Zahid Yaqoob, Changhuei Yang

JBO, Vol. 15, Issue 02, 025004, (March 2010) https://doi.org/10.1117/12.10.1117/1.3381188

KEYWORDS: Scattering, Light scattering, Tissues, Phase conjugation, Optical proximity correction, Laser scattering, Wavefronts, Tissue optics, Breast, Crystals

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Proceedings Article | 24 February 2010 Paper

A wide field-of-view microscope based on holographic focus grid

Jigang Wu, Xiquan Cui, Guoan Zheng, Lap Man Lee, Changhuei Yang

Proceedings Volume 7570, 757009 (2010) https://doi.org/10.1117/12.842303

KEYWORDS: Microscopes, Holograms, Collimation, Image resolution, Optical sensors, Holography, 3D image reconstruction, Objectives, Beam splitters, Prototyping

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Proceedings Article | 18 February 2010 Paper

Simulating the optical phase conjugation phenomenon of light multiply scattered through a macroscopic random medium

Snow Tseng, Meng Cui, Changhuei Yang

Proceedings Volume 7573, 757302 (2010) https://doi.org/10.1117/12.839994

KEYWORDS: Optical proximity correction, Light scattering, Phase conjugation, Scattering, Mirrors, Optical simulations, Electromagnetism, Radio propagation, Biomedical optics, Electromagnetic scattering

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SPIE Journal Paper | 1 March 2008 Open Access

Handheld forward-imaging needle endoscope for ophthalmic optical coherence tomography inspection

Shuo Han, Marinko Sarunic, Jigang Wu, Mark Humayun, Changhuei Yang

JBO, Vol. 13, Issue 02, 020505, (March 2008) https://doi.org/10.1117/12.10.1117/1.2904664

KEYWORDS: Optical coherence tomography, GRIN lenses, Vitreous, Retina, Surgery, Endoscopes, Inspection, Optical inspection, Eye, Retinal scanning

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Proceedings Article | 29 February 2008 Paper

Optofluidic microscope: a complete on-chip imaging device

Xiquan Cui, Xin Heng, Changhuei Yang

Proceedings Volume 6859, 68590Y (2008) https://doi.org/10.1117/12.764957

KEYWORDS: Microfluidics, CMOS sensors, Microscopes, Image resolution, Imaging systems, Sensors, Imaging devices, Prototyping, Aluminum, Lab on a chip

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Proceedings Article | 29 February 2008 Paper

Two-dimensional differential interference contrast microscopy based on four-hole variation of Young's interference

Matthew Lew, Xiquan Cui, Xin Heng, Changhuei Yang

Proceedings Volume 6859, 685916 (2008) https://doi.org/10.1117/12.760118

KEYWORDS: Spiral phase plates, Microscopy, Optical vortices, Digital image correlation, Photomasks, Image sensors, CMOS sensors, Phase imaging, Phase measurement, Metals

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Proceedings Article | 20 February 2008 Paper

Observing dynamics of transparent samples by harmonically matched grating-based full-field quadrature phase interferometer

Jigang Wu, Zahid Yaqoob, Xin Heng, Lap Man Lee, Xiquan Cui, Changhuei Yang

Proceedings Volume 6861, 686102 (2008) https://doi.org/10.1117/12.759210

KEYWORDS: Phase shifts, Diffraction gratings, Interferometers, Imaging systems, Beam splitters, Charge-coupled devices, Image processing, Phase interferometry, Phase imaging, CCD cameras

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Proceedings Article | 23 March 2007 Paper

Toward forward-looking OCT needle tip vision of the spinal neuroforamen: animal studies

David Raphael, Changhuei Yang, Nancy Tresser, Jigang Wu, Yaoping Zhang, Felix Feldchtein, Linda Rever

Proceedings Volume 6424, 642429 (2007) https://doi.org/10.1117/12.703188

KEYWORDS: Optical coherence tomography, Nerve, Imaging systems, Arteries, Safety, Image resolution, Visualization, Injuries, Spinal cord, Tissue optics

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Proceedings Article | 20 February 2007 Paper

Zahid Yaqoob, Jigang Wu, Xiquan Cui, Xin Heng, Changhuei Yang

Proceedings Volume 6488, 64880J (2007) https://doi.org/10.1117/12.701585

KEYWORDS: Phase shifts, Interferometers, Diffraction gratings, Phase interferometry, Diffraction, Phase measurement, Michelson interferometers, Phase shift keying, Mirrors, Optical design

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Proceedings Article | 19 February 2007 Paper

On-chip differential interference contrast (DIC) phase imager and beam profiler based on Young’s interference

Xiquan Cui, Matthew Lew, Xin Heng, Changhuei Yang

Proceedings Volume 6441, 64411F (2007) https://doi.org/10.1117/12.699920

KEYWORDS: Digital image correlation, Spiral phase plates, Optical vortices, Phase imaging, Gaussian beams, Imaging devices, Wavefronts, Profiling, Aluminum, Optical components

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Proceedings Article | 19 February 2007 Paper

A high-resolution optofluidic microscope with optical tweezer actuation

Xin Heng, Edward Hsiao, Demetri Psaltis, Changhuei Yang

Proceedings Volume 6441, 644113 (2007) https://doi.org/10.1117/12.701728

KEYWORDS: Optical tweezers, Imaging systems, Microscopes, Image resolution, Near field scanning optical microscopy, Cameras, Aluminum, Objectives, CCD cameras, Diffraction

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Proceedings Article | 14 February 2007 Paper

Quantitative phase imaging using grating-based quadrature phase interferometer

Jigang Wu, Zahid Yaqoob, Xin Heng, Xiquan Cui, Changhuei Yang

Proceedings Volume 6443, 64430J (2007) https://doi.org/10.1117/12.701694

KEYWORDS: Phase shifts, Diffraction gratings, Holography, Phase imaging, Beam splitters, Interferometers, Phase interferometry, Imaging systems, Diffraction, Mach-Zehnder interferometers

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Proceedings Article | 7 February 2007 Paper

Imaging vasculature independent of direction of flow using spectral domain optical coherence tomography

J. Fingler, J. Williams, C. Yang, S. Fraser

Proceedings Volume 6429, 64290P (2007) https://doi.org/10.1117/12.697231

KEYWORDS: Optical coherence tomography, Phase measurement, Phase contrast, Signal to noise ratio, Motion measurement, Imaging systems, Doppler effect, Visualization, Error analysis, Interference (communication)

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Proceedings Article | 7 February 2007 Paper

Endoscopic optical coherence tomography of the retina at 1310 nm using paired-angle rotating scanning

Marinko Sarunic, Shuo Han, Jigang Wu, Zahid Yaqoob, Mark Humayun, Changhuei Yang

Proceedings Volume 6429, 642911 (2007) https://doi.org/10.1117/12.701226

KEYWORDS: Optical coherence tomography, GRIN lenses, Endoscopy, Vitreous, Retina, Imaging systems, Surgery, Mirrors, Scanners, Polishing

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SPIE Journal Paper | 1 November 2006 Open Access

Methods and application areas of endoscopic optical coherence tomography

Zahid Yaqoob, Jigang Wu, Emily McDowell, Xin Heng, Changhuei Yang

JBO, Vol. 11, Issue 06, 063001, (November 2006) https://doi.org/10.1117/12.10.1117/1.2400214

KEYWORDS: Optical coherence tomography, Endoscopy, Endoscopes, Tissues, Imaging systems, Biopsy, Tissue optics, Mirrors, In vivo imaging, GRIN lenses

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Proceedings Article | 13 September 2006 Paper

A compact optofluidic microscope

Xin Heng, Xiquan Cui, David Erickson, Larry Baugh, Paul Sternberg, Demetri Psaltis, Changhuei Yang

Proceedings Volume 6329, 632908 (2006) https://doi.org/10.1117/12.678940

KEYWORDS: Microfluidics, Imaging systems, Microscopes, Charge-coupled devices, Signal to noise ratio, Near field scanning optical microscopy, Imaging devices, Animal model studies, Lab on a chip, Microscopy

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SPIE Journal Paper | 1 September 2006 Open Access

Molecular contrast optical coherence tomography: a pump-probe scheme using indocyanine green as a contrast agent

Zahid Yaqoob, Emily McDowell, Jigang Wu, Xin Heng, Jeff Fingler, Changhuei Yang

JBO, Vol. 11, Issue 05, 054017, (September 2006) https://doi.org/10.1117/12.10.1117/1.2360525

KEYWORDS: Optical coherence tomography, Absorption, Molecules, Statistical analysis, Glasses, Latex, Indocyanine green, Imaging systems, Tissues, Scattering

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Proceedings Article | 28 February 2006 Paper

Portable optical microscope-on-a-chip

Xiquan Cui, Xin Heng, David Erickson, Demetri Psaltis, Changhuei Yang

Proceedings Volume 6095, 609509 (2006) https://doi.org/10.1117/12.640328

KEYWORDS: CMOS sensors, Image resolution, Imaging systems, Aluminum, Signal to noise ratio, Optical sensors, Microfluidics, Objectives, Image sensors, Optical resolution

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Proceedings Article | 21 February 2006 Paper

Optofluidic microscope and its applications in biology

Xin Heng, Kevin Reynolds, Xiquan Cui, David Erickson, Demetri Psaltis, Changhuei Yang

Proceedings Volume 6088, 608816 (2006) https://doi.org/10.1117/12.640325

KEYWORDS: Microfluidics, Microscopes, Imaging systems, Signal to noise ratio, Image resolution, Charge-coupled devices, Biology, Imaging devices, Animal model studies, Lab on a chip

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Proceedings Article | 20 February 2006 Paper

Pump-probe optical coherence tomography using indocyanine green as a contrast agent

Zahid Yaqoob, Emily McDowell, Jigang Wu, Changhuei Yang

Proceedings Volume 6079, 607904 (2006) https://doi.org/10.1117/12.646509

KEYWORDS: Optical coherence tomography, Absorption, Molecules, Indocyanine green, Glasses, Imaging systems, Quantum efficiency, Single mode fibers, Photons, Beam splitters

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Proceedings Article | 20 February 2006 Paper

Forward-cone-imaging OCT needle probe

Jigang Wu, Michael Conry, Chunhui Gu, Fei Wang, Zahid Yaqoob, Changhuei Yang

Proceedings Volume 6079, 60791J (2006) https://doi.org/10.1117/12.646554

KEYWORDS: GRIN lenses, Optical coherence tomography, Single mode fibers, Prototyping, Signal to noise ratio, Laser beam diagnostics, Photography, Biomedical optics, Actuators, Biopsy

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Proceedings Article | 20 February 2006 Paper

Transverse priority phase sensitive optical coherence tomography

Jeff Fingler, Jon Williams, Zahid Yaqoob, Changhuei Yang, Richard Haskell, Scott Fraser

Proceedings Volume 6079, 607922 (2006) https://doi.org/10.1117/12.648997

KEYWORDS: Optical coherence tomography, Phase measurement, Signal to noise ratio, Motion measurement, Scanners, Mirrors, Phase contrast, Interference (communication), Imaging systems, Data acquisition

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Proceedings Article | 12 November 2005 Paper

A new imaging method: optofluidic microscopy

Xin Heng, David Erickson, Demetri Psaltis, Changhuei Yang

Proceedings Volume 6003, 60030F (2005) https://doi.org/10.1117/12.632157

KEYWORDS: Microfluidics, Microscopes, Imaging systems, Charge-coupled devices, Signal to noise ratio, Microscopy, Imaging devices, Aluminum, Gold, Near field optics

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Proceedings Article | 10 September 2005 Paper

Optofluidics

David Erickson, Xin Heng, Zhenyu Li, Troy Rockwood, Teresa Emery, Zhaoyu Zhang, Axel Scherer, Changhuei Yang, Demetri Psaltis

Proceedings Volume 5908, 59080S (2005) https://doi.org/10.1117/12.623629

KEYWORDS: Microfluidics, Photonic crystals, Fluid dynamics, Dye lasers, Liquids, Image resolution, Optical properties, Nanophotonics, Water, Interfaces

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Proceedings Article | 13 April 2005 Paper

Molecular contrast optical coherence tomography: SNR comparison of techniques and introduction of ground state recovery pump-probe OCT

Brian Applegate, Marinko Sarunic, Changhuei Yang, Joseph Izatt

Proceedings Volume 5690, (2005) https://doi.org/10.1117/12.592866

KEYWORDS: Signal to noise ratio, Optical coherence tomography, Rhodamine, Spectroscopy, Absorption, Molecules, Signal detection, Luminescence, Quantum efficiency, Molecular spectroscopy

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Proceedings Article | 1 July 2004 Paper

Instantaneous complex spectral domain OCT using 3x3 fiber couplers

Marinko Sarunic, Michael Choma, Changhuei Yang, Joseph Izatt

Proceedings Volume 5316, (2004) https://doi.org/10.1117/12.531422

KEYWORDS: Optical coherence tomography, Sensors, Interferometers, Fiber couplers, Interferometry, Spectrometers, Signal detection, Reflectors, Mirrors, Photodiodes

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Proceedings Article | 1 July 2004 Paper

Protein-based molecular contrast optical coherence tomography

Changhuei Yang, Michael Choma, Laura Lamb, John Simon, Joseph Izatt

Proceedings Volume 5316, (2004) https://doi.org/10.1117/12.531353

KEYWORDS: Optical coherence tomography, Proteins, Absorption, Chromophores, In vivo imaging, Luminescence, Image processing, Microscopy, Optical switching, Scattering

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Proceedings Article | 2 October 2003 Paper

Fast-scanning dispersion-adjustable reference delay for OCT using fiber Bragg gratings

Changhuei Yang, Siavash Yazdanfar, Joseph Izatt

Proceedings Volume 5140, (2003) https://doi.org/10.1117/12.500987

KEYWORDS: Fiber Bragg gratings, Signal detection, Optical coherence tomography, Dispersion, Mirrors, Geometrical optics, Optical fibers, Refractive index, Light sources, Biomedical optics

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Proceedings Article | 2 October 2003 Paper

Molecular contrast in optical coherence tomography using a pump-probe technique and a optical switch suppression technique

Changhuei Yang, K. Rao, Michael Choma, Siavash Yazdanfar, Andrew Rollins, Joseph Izatt

Proceedings Volume 5140, (2003) https://doi.org/10.1117/12.501007

KEYWORDS: Optical coherence tomography, Absorption, Optical switching, Scattering, Imaging systems, Ultraviolet radiation, Molecules, Proteins, Molecular spectroscopy, Luminescence

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Proceedings Article | 10 July 2003 Paper

New implementation of second harmonic generation microscopy for three-dimensional resolution

Changhuei Yang, Jerome Mertz

Proceedings Volume 4963, (2003) https://doi.org/10.1117/12.478032

KEYWORDS: Second-harmonic generation, Crystals, Light scattering, Microscopy, Confocal microscopy, Signal detection, Microscopes, Harmonic generation, Scattering, Latex

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Proceedings Article | 14 June 2002 Paper

Cell dynamics with a novel phase referenced low-coherence interferometer with sub-wavelength and sub-hertz sensitivity

Changhuei Yang, Adam Wax, Kamran Badizadegan, Ramachandra Dasari, Michael Feld

Proceedings Volume 4619, (2002) https://doi.org/10.1117/12.470484

KEYWORDS: Interfaces, Heterodyning, Interferometers, Motion measurement, Mirrors, Composites, Phase interferometry, Microscopes, Biomedical optics

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Proceedings Article | 23 May 2001 Paper

Interferometric phase-based dual-wavelength tomography

Changhuei Yang, Adam Wax, Ramachandra Dasari, Michael Feld

Proceedings Volume 4251, (2001) https://doi.org/10.1117/12.427872

KEYWORDS: Dispersion, Refractive index, Phase velocity, Optical coherence tomography, Phase measurement, Interferometry, Microscopy, Tomography, Phase interferometry, Microscopes

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Proceedings Article | 23 May 2001 Paper

Angular light scattering studies using low-coherence interferometry

Adam Wax, Changhuei Yang, Ramachandra Dasari, Michael Feld

Proceedings Volume 4251, (2001) https://doi.org/10.1117/12.427903

KEYWORDS: Light scattering, Mie scattering, Scattering, Interferometry, Particles, Sensors, Imaging systems, Optical coherence tomography, Diffraction, Multiple scattering

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SPIE Journal Paper | 1 April 2000 Open Access

Feasibility of field-based light scattering spectroscopy

Changhuei Yang, Lev Perelman, Adam Wax, Ramachandra Dasari, Michael Feld

JBO, Vol. 5, Issue 02, (April 2000) https://doi.org/10.1117/12.10.1117/1.429980

KEYWORDS: Light scattering, Heterodyning, Scattering, Sensors, Mie scattering, Laser beam diagnostics, Spectroscopy, Refractive index, Interferometry, Mirrors

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Showing 5 of 71 publications

Conference Committee Involvement (5)

Integrated Sensors for Biological and Neural Sensing

6 March 2021 | Online Only, California, United States

Quantitative Phase Imaging IV

28 January 2018 | San Francisco, California, United States

Quantitative Phase Imaging III

29 January 2017 | San Francisco, California, United States

Quantitative Phase Imaging II

14 February 2016 | San Francisco, California, United States

Quantitative Phase Imaging

7 February 2015 | San Francisco, California, United States

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