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2.3-cycle mid-infrared pulses from hybrid thin-plate post-compression at 7 W average power

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Title
2.3-cycle mid-infrared pulses from hybrid thin-plate post-compression at 7 W average power
Author(s)
Mate Kurucz; Roland Flender; Ludovit Haizer; Roland S. Nagymihaly; Wosik Cho; Kyung Taec Kim; Szabolcs Toth; Eric Cormier; Balint Kiss
Subject
High-power, ; Mid-infrared, ; Post-compression, ; Thin plate compression
Publication Date
2020-10
Journal
OPTICS COMMUNICATIONS, v.472, pp.126035
Publisher
ELSEVIER SCIENCE BV
Abstract
© 2020 The Authors. Published by Elsevier B.V. Output pulses of a 100 kHz mid-infrared OPCPA system are post-compressed from 4.7 cycles down to 2.3 cycles by using a combination of a dielectric and a semiconductor crystal in a hybrid thin plate setup. Efficient spectral broadening is demonstrated with 11 W average input power. After compression the output power reached 6.8 W with exceptional CEP and energy stability for a several hours. The post-compressed pulses were carefully characterized in both temporal and spatial domains, resulting in 2.3-cycle temporal duration at 3.1 μm central wavelength with a temporal Strehl ratio of 0.73 and a spatial Strehl ratio of 0.97. Thermal limitations due to multiphoton absorption of semiconductors present at this power level are explored by temperature measurements, which are supported by detailed numerical simulations. Upscaling for higher average powers was also investigated
URI
https://pr.ibs.re.kr/handle/8788114/7623
DOI
10.1016/j.optcom.2020.126035
ISSN
0030-4018
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > 1. Journal Papers (저널논문)
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