Second-harmonic generation in polycrystalline ZnSe in the absence of phase matching

Autor:	R. Shahin, A. P. Savikin, O. V. Martynova, S. V. Kurashkin, D. V. Savin
Rok vydání:	2023
Předmět:	Physics and Astronomy (miscellaneous) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials
Zdroj:	Journal of Nonlinear Optical Physics & Materials.
ISSN:	1793-6624 0218-8635
Popis:	The work is devoted to the study of the second-harmonic generation (SHG) process as a result of random quasi-phase-matching of thulium laser radiation in ZnSe polycrystals. A linear dependence of the SHG efficiency on the nonlinear medium length has been observed in the experiment. The efficiencies of SHG in ZnSe polycrystals with average grain sizes from 35[Formula: see text][Formula: see text]m to 380[Formula: see text][Formula: see text]m were compared. The obtained results are in good agreement with the theory in the case of a Gaussian grain size distribution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bce4210695441b69a9213ccbcd621f82 https://doi.org/10.1142/s0218863523500601 Zobrazit plný text záznamu