Post-compression of a second harmonic pulse: a way to increase the peak power and temporal contrast of ultrahigh-power laser pulses

S.Yu. Mironov^†, E.A. Khazanov^‡
Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, ul. Ulyanova 46, Nizhny Novgorod, 603000, Russian Federation

We discuss the use of second harmonic generation (SHG) and subsequent temporal compression to increase the peak power and improve the temporal contrast ratio of pulses at the output of petawatt and multi-petawatt laser systems. Two ways to apply SHG are considered: directly to ultra-short pulses with central wavelengths of 910 nm and 800 nm, as well as to (sub)-picosecond pulses of neodymium lasers with energies up to 1 kJ. The second way is a new approach to producing sources of ultrahigh-power laser pulses of ultra-short duration in the visible wavelength range and may be used in all modern projects aimed at generating extreme light.

Keywords: second harmonic generation, time contrast, time post-compression
PACS: 42.60.-y, 42.65.Ky, 42.65.Re (all)
DOI: 10.3367/UFNe.2023.05.039535
URL: https://ufn.ru/en/articles/2024/1/j/
Web of Science

001198734600009
Scopus

2-s2.0-85186111810
ADS NASA

2024PhyU...67...99M
Citation: Mironov S Yu, Khazanov E A "Post-compression of a second harmonic pulse: a way to increase the peak power and temporal contrast of ultrahigh-power laser pulses" Phys. Usp. 67 99–103 (2024)

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Received: 1st, August 2023, accepted: 22nd, May 2023

Оригинал: Миронов С Ю, Хазанов Е А «Посткомпрессия импульса второй гармоники — путь увеличения пиковой мощности и временного контраста сверхмощных лазерных импульсов» УФН 194 106–111 (2024); DOI: 10.3367/UFNr.2023.05.039535

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