Open AccessHigh-speed flow microscopy using compressed sensing with ultrafast laser pulses
Author(s) -
Bryan T. Bosworth,
Jasper R. Stroud,
Dũng Trần,
Trac D. Tran,
Sang Chin,
Mark A. Foster
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.010521
Subject(s) - optics , ultrashort pulse , chirp , materials science , laser , sampling (signal processing) , compressed sensing , broadband , frame rate , nyquist rate , spectral imaging , computer science , physics , detector , artificial intelligence
We demonstrate an imaging system employing continuous high-rate photonically-enabled compressed sensing (CHiRP-CS) to enable efficient microscopic imaging of rapidly moving objects with only a few percent of the samples traditionally required for Nyquist sampling. Ultrahigh-rate spectral shaping is achieved through chirp processing of broadband laser pulses and permits ultrafast structured illumination of the object flow. Image reconstructions of high-speed microscopic flows are demonstrated at effective rates up to 39.6 Gigapixel/sec from a 720-MHz sampling rate.