Séminaire R-D - Photographie ultra-rapide compressée: la capture instantanée d'événements à la vitesse de la lumière

Séminaire R-D - Photographie ultra-rapide compressée: la capture instantanée d'événements à la vitesse de la lumière
24/05/18 11h00
CRIM (405, avenue Ogilvy, bureau 101, Montréal)

Photographie ultra-rapide compressée: la capture instantanée d'événements à la vitesse de la lumière

Conférencier

Jinyang Liang, Ph.D., Laboratory of Applied Computational Imaging (LACI), Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique (INRS).

Présentation en anglais


Compressed Ultrafast Photography: Imaging Light-speed Events in a Snapshot

Speaker

Jinyang Liang, Ph.D., Laboratory of Applied Computational Imaging (LACI), Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique (INRS).

Abstract

Direct imaging of transient events can greatly aid the understanding of many underlying principles in materials science, chemistry, and biology. These events, often probabilistic and occurring at sub-nanosecond time scales, require real-time imaging at ultra-high temporal resolutions. However, established ultrafast imaging methods fall short due to their requirement for repetitive measurements. To overcome these limitations, we have developed compressed ultrafast photography (CUP)—the world’s fastest imaging technology with an imaging speed of up to 10 trillion frames per second. CUP has made first-ever real-time recording of a number of optical phenomena, including faster-than-light propagation of non-information, laser-pumped fluorescence emission [Nature 516 74-77 (2014)], time-resolved light backscattering [Scientific Reports 5 15504 (2015)], and propagating photonic Mach cones [Science Advances 3 e1601814 (2017)]. As a light-speed optical imaging modality, CUP holds great promise for improving understanding of various transient physical, chemical and biological processes in many fundamental and applied sciences. As a generic ultrafast imaging paradigm, CUP will be extended to facilitate advancing ultrafast imaging instrumentations in other spectral ranges.

Biography

Dr. Jinyang Liang is currently an Assistant Professor at the Institut National de la Recherche Scientifique (INRS) - Université du Québec. His research interests cover a broad range of areas, including ultrafast imaging, photoacoustic microscopy, wavefront engineering, and high-precision laser beam shaping. His research primarily focuses on implementing optical modulation techniques to develop new optical instruments for applications in physics and biology. He has published over 50 journal papers and conference proceedings, including Nature (cover story), Science Advances, and Optica. He holds two U.S. patents on ultrafast optical imaging technology. He received his B.E. degree in Optoelectronic Engineering from Beijing Institute of Technology in 2007, and his M.S. and Ph.D. degrees in Electrical Engineering from the University of Texas at Austin, in 2009 and 2012. From 2012 to 2017, he was a postdoctoral trainee in Washington University in St. Louis and California Institute of Technology.


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Jeudi, 24 mai 2018, de 11 h à midi.  Au CRIM, 405, avenue Ogilvy, bureau 101, Montréal. 

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