Prof. Nicolas C. Pégard Profile

Prof. Nicolas C. Pégard

SPIE Involvement:

Conference Program Committee | Author

Area of Expertise:

Computational imaging , Temporal focusing , Light field microscopy , Optogenetics , two-photon brain imaging , Microfluidics

Proceedings Article | 18 June 2024 Presentation

Chromatix: a high-performance differentiable wave optics simulation library

Diptodip Deb, Gert-Jan Both, Amey Chaware, Amit Kohli, Cédric Allier, Changjia Cai, Geneva Schlafly, Guanghan Meng, M. Hossein Eybposh, Magdalena Schneider, Rishi Athavale, Xi Yang, Nicolas Pégard, Patrick La Riviere, Roarke Horstmeyer, Srinivas Turaga

Proceedings Volume PC13023, PC130230G (2024) https://doi.org/10.1117/12.3029443

KEYWORDS: Inverse optics, Optical simulations, Optical design, Optical components, Microscopy, Free space optics, Design, Computer simulations, Computational imaging, Wave propagation

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Proceedings Article | 28 June 2023 Paper

Teaching optics with LightFlow: an intuitive framework for light propagation simulations

M. Hossein Eybposh, Changjia Cai, Vincent Curtis, Nicolas Pegard

Proceedings Volume 12723, 1272325 (2023) https://doi.org/10.1117/12.2672562

KEYWORDS: Machine learning, Simulations, Design and modelling, Open source software, Light wave propagation, Optics education, Optical components

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SPIE Journal Paper | 16 June 2022 Open Access

Advances in computer-generated holography for targeted neuronal modulation

M. Hossein Eybposh, Vincent Curtis, Jose Rodriguez-Romaguera, Nicolas Pégard

NPh, Vol. 9, Issue 04, 041409, (June 2022) https://doi.org/10.1117/12.10.1117/1.NPh.9.4.041409

KEYWORDS: Computer generated holography, Modulation, Neurons, Spatial light modulators, Holograms, Detection and tracking algorithms, Modulators, 3D acquisition, Digital micromirror devices, Optogenetics

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Proceedings Article | 9 March 2022 Presentation

Optimization of time-multiplexed computer-generated holograms with surrogate gradients

M. Hossein Eybposh, Aram Moossavi, Vincent Curtis, Nicolas Pegard

Proceedings Volume PC12014, PC1201406 (2022) https://doi.org/10.1117/12.2607781

KEYWORDS: Computer generated holography, Image quality, Holograms, Binary data, Modulation, Digital micromirror devices, Algorithm development, Yield improvement, Phase modulation, Optoelectronic devices

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Proceedings Article | 7 March 2022 Presentation

Fast light sculpting techniques for online optical interrogation of biological functions

Nicolas Pégard

Proceedings Volume PC11944, PC1194409 (2022) https://doi.org/10.1117/12.2616203

KEYWORDS: Tissue optics, Biomedical optics, Holograms, Superposition, Photostimulation, Optogenetics, Neurons, Laser damage threshold, Laser applications, Image resolution

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Proceedings Article | 28 February 2020 Paper

Design framework for high-speed 3D scanning tools and development of an axial focusing micromirror-based array

Nathan Tessema Ersumo, Cem Yalcin, Nick Antipa, Nicolas Pégard, Laura Waller, Daniel Lopez, Rikky Muller

Proceedings Volume 11293, 1129303 (2020) https://doi.org/10.1117/12.2550994

KEYWORDS: 3D scanning, Micromirrors, Mirrors, Monte Carlo methods, Lenses, Optical scanning, Microelectromechanical systems, Actuators, Diffraction, 3D acquisition

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Proceedings Article | 8 March 2019 Presentation

Ultraviolet metasurface based on highly scattering silicon antennas (Conference Presentation)

Yang Deng, Xi Wang, Zilun Gong, Kaichen Dong, Shuai Lou, Nicolas Pégard, Kyle Tom, Fuyi Yang, Laura Waller, Zheng You, Jie Yao

Proceedings Volume 10928, 1092806 (2019) https://doi.org/10.1117/12.2508169

KEYWORDS: Ultraviolet radiation, Silicon, Scattering, Antennas, Light scattering, Optical lithography, Diffraction, Integrated optics, UV optics, System integration

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SPIE Journal Paper | 21 September 2017 Open Access

UC Berkeley Sculpted Light in the Brain 2017 debates future technologies to communicate with the brain

Aamod Shanker, Nicolas Pégard, Regina Eckert, Laura Waller

NPh, Vol. 4, Issue 03, 030401, (September 2017) https://doi.org/10.1117/12.10.1117/1.NPh.4.3.030401

KEYWORDS: Brain, Neurons, Tissue optics, Scattering, Neuroimaging, Light scattering, Imaging systems, Neurophotonics, Visible radiation, Electrical engineering

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SPIE Journal Paper | 3 April 2013 Open Access

Three-dimensional deconvolution microfluidic microscopy using a tilted channel

Nicolas Pegard, Jason Fleischer

JBO, Vol. 18, Issue 04, 040503, (April 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.4.040503

KEYWORDS: Microfluidics, 3D image processing, Deconvolution, Microscopes, Point spread functions, Microscopy, 3D metrology, Particles, Yeast, Channel projecting optics

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Showing 5 of 9 publications

Conference Committee Involvement (4)

Adaptive Optics and Wavefront Control for Biological Systems XI

26 January 2025 | San Francisco, California, United States

Neurophotonics II

8 April 2024 | Strasbourg, France

Adaptive Optics and Wavefront Control for Biological Systems X

28 January 2024 | San Francisco, California, United States

Adaptive Optics and Wavefront Control for Biological Systems IX

29 January 2023 | San Francisco, California, United States

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