Non-linear materials for efficient mid-IR few cycle pulse compression

Bálint Kiss; Roland Flender; Máté Kurucz; Tamás Somoskői; Eric Cormier

doi:10.1117/12.2602339

15 October 2021 Non-linear materials for efficient mid-IR few cycle pulse compression

Bálint Kiss, Roland Flender, Máté Kurucz, Tamás Somoskői, Eric Cormier

Proceedings Volume 11910, Laser-Induced Damage in Optical Materials 2021; 1191009 (2021) https://doi.org/10.1117/12.2602339
Event: SPIE Laser Damage, 2021, Online Only

Abstract

A simple and cheap technique for post-compression of mid-IR laser pulses relies on nonlinear spectral broadening via SPM in mm-thick optical windows (plates) followed by recompression. Efficient broadening requires peak intensities of ~hundred GW/cm2, which in case of high average power (>10W) drivers puts serious requirements on the used optical materials’ thermal properties, purity, homogeneity, surface quality and LIDT of coatings. Several materials (YAG, fluorides, KBr, Si, ZnSe, ZnS) were tested with 3.2 µm, 13W (130 µJ, 100 kHz), 48 fs pumping. Measured nonlinear absorption, wavefront distortion, spectral broadening and long-term survival as a function of intensity will be shown.

Conference Presentation

Citation Download Citation

Bálint Kiss, Roland Flender, Máté Kurucz, Tamás Somoskői, and Eric Cormier "Non-linear materials for efficient mid-IR few cycle pulse compression", Proc. SPIE 11910, Laser-Induced Damage in Optical Materials 2021, 1191009 (15 October 2021); https://doi.org/10.1117/12.2602339

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