5-10 May 2019
MedILS
Europe/Berlin timezone

Algorithmic ultrafast imaging

8 May 2019, 14:50
20m
Main Hall (MedILS)

Main Hall

MedILS

Oral Contribution Diagnostics

Speaker

Robin Wang (University of Oxford)

Description

A single-shot hyperspectral camera has been built and a single-shot ultrafast videography protocol has been developed. The camera is capable of retrieving three dimensions of information (two spatial dimensions along with a time or spectral dimension) from a two-dimensional signal of a conventional CCD camera. The third dimension is retrieved using a combination of compressed sensing along with the spatial and spectral modulation of an incoming signal.

Time resolution using the camera is achieved by passing a chirped probe pulse through a temporally interesting event. The compressed sensing algorithm then reconstructs a hyperspectral datacube, where slices of the datacube that are lower frequency (redder) will correspond to an earlier point in time while higher frequency slices (more blue) correspond to a later point in time. We expect to capture a video at tens of trillions frames per second.

Working group Diagnostics

Primary authors

Robin Wang (University of Oxford) Dr Muhammad Kasim (University of Oxford) Dr James Holloway (University of Oxford) Mr Alexander Picksley (University of Oxford) Mr Ramy Aboushelbaya (University of Oxford) Marko Mayr (University of Oxford) Mr Alexander Savin (University of Oxford) Mr Benjamin Spier (University of Oxford) Prof. Peter Norreys (University of Oxford)

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