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Single-shot spatiotemporal characterization of a multi-PW laser using a multispectral wavefront sensing method

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Title
Single-shot spatiotemporal characterization of a multi-PW laser using a multispectral wavefront sensing method
Author(s)
YEONG GYU KIM; JI IN KIM; JIN WOO YOON; JAE HEE SUNG; SEONG KU LEE; CHANGE HEE NAM
Subject
RADIAL GROUP DELAY, ; ANGULAR-DISPERSION, ; FOURIER-TRANSFORM, ; ULTRASHORT PULSES, ; COMPRESSOR, ; DISTORTION, ; RECONSTRUCTION, ; ABERRATIONS, ; INTENSITY, ; FIELDS
Publication Date
2021-06-21
Journal
OPTICS EXPRESS, v.29, no.13, pp.19506 - 19514
Publisher
Optical Society of America
Abstract
© 2021 OSA - The Optical Society. All rights reserved.The single-shot spatiotemporal characterization of an ultrahigh intensity laser pulse was performed using a multispectral wavefront sensor. For the measurement of the spatio-spectral electric field, a femtosecond laser pulse was spectrally modulated and separated by a Fabry-Perot etalon coupled with a grating pair, and its spatio-spectral electric field was measured with a wavefront sensor. The spatiotemporal electric field was reconstructed from the measured spatiospectral electric field of a multi-PW laser pulse. We found that the spatiotemporal distortion could reduce the focused laser intensity by 15%, compared to the case of a diffraction-limited and transform-limited laser pulse.
URI
https://pr.ibs.re.kr/handle/8788114/9974
DOI
10.1364/OE.429891
ISSN
1094-4087
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > 1. Journal Papers (저널논문)
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