Photoluminescence of GaS–GaSe Heterostructures Upon Two- and Three-Photon Excitation by Laser Radiation

Nonlinear absorption in GaS–GaSe heterostructures under the action of a Nd:YAG laser with built-in generators of the 2nd and 3rd harmonics, designed to generate radiation with wavelengths of 1064, 532, and 335 nm, is experimentally studied. It is shown that the appearance of characteristic radiation...

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Veröffentlicht in:	Russian physics journal 2023, Vol.65 (9), p.1475-1481
Hauptverfasser:	Salmanov, V. M., Guseinov, A. G., Mamedov, R. M., Ahmedova, F. Sh, Aliyeva, A. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed Matter Physics Excitation Hadrons Heavy Ions Heterostructures Lasers Luminescence Mathematical and Computational Physics Neodymium lasers Nuclear Physics Optical Devices Optics Optoelectronics industry Photoluminescence Photon absorption Photonics Photons Physics Physics and Astronomy Radiation Semiconductor lasers Theoretical YAG lasers
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Zusammenfassung:	Nonlinear absorption in GaS–GaSe heterostructures under the action of a Nd:YAG laser with built-in generators of the 2nd and 3rd harmonics, designed to generate radiation with wavelengths of 1064, 532, and 335 nm, is experimentally studied. It is shown that the appearance of characteristic radiation in the luminescence spectra and the behavior of the dependence of luminescence on the excitation intensity indicate the presence of two- and three-photon absorption processes in GaS-GaSe heterostructures.
ISSN:	1064-8887 1573-9228
DOI:	10.1007/s11182-023-02793-8