Open AccessInfluence of ZnGeP2 crystal temperature on broadband cascaded frequency conversion (numerical study)
Author(s) -
А. А. Ионин,
I. O. Kinyaevskiy,
A. M. Sagitova
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1439/1/012021
Subject(s) - materials science , crystal (programming language) , phase matching , broadband , radiation , energy conversion efficiency , frequency conversion , optics , laser , optoelectronics , physics , electrical engineering , programming language , engineering , computer science
Broadband three-stage frequency conversion of multiline CO laser radiation in a single sample of ZnGeP2 crystal was numerically studied at various crystal temperatures. Decrease of the ZnGeP2 crystal temperature resulted in enhancement of efficiency for each frequency conversion stage due to phase-matching shifting. The third stage efficiency at liquid-nitrogen crystal temperature was 1.7-fold higher as compared to one at the room temperature. Also, the crystal temperature decrease resulted in spectral broadening of frequency converted radiation.