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분자 분광학 및 동력학 연구단
분자 분광학 및 동력학 연구단
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Single-shot imaging of microscopic dynamic scenes at 5 THz frame rates by time and spatial frequency multiplexing

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Title
Single-shot imaging of microscopic dynamic scenes at 5 THz frame rates by time and spatial frequency multiplexing
Author(s)
Jungho Moon; Seokchan Yoon; Lim, Yong-Sik; Wonshik Choi
Publication Date
2020-02
Journal
OPTICS EXPRESS, v.28, no.4, pp.4463 - 4474
Publisher
OPTICAL SOC AMER
Abstract
© 2020 Optical Society of America under the terms of the OSA Open Access Publishing AgreementFemtosecond-scale ultrafast imaging is an essential tool for visualizing ultrafast dynamics in many scientific fields. We present a single-shot ultrafast microscopy that can capture more than a dozen frames at a time with the frame rate of 5 THz. We combine a spatial light modulator and a custom-made echelon for efficiently generating a large number of reference pulses with designed time delays and propagation angles. The single-shot recording of the interference image between these reference pulses with a sample pulse allows us to retrieve the stroboscopic images of the dynamic scene at the timing of the reference pulses. We demonstrated the recording of 14 temporal snapshots at a time, which is the largest to date, with the optimal temporal resolution set by the laser output pulse. This will have profound impacts on uncovering the interesting spatio-temporal dynamics yet to be explored
URI
https://pr.ibs.re.kr/handle/8788114/7245
ISSN
1094-4087
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > Journal Papers (저널논문)
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