Cascade χ(3)-Nonlinear Processes in a New SRS-Active Ca2MgSi2O7 Crystal

Cascade χ(3)-Nonlinear Processes in a New SRS-Active Ca2MgSi2O7 Crystal

Stimulated Raman scattering in magnesium silicate Ca 2 MgSi 2 O 7 , which enters the family of ‑tetragonal acentric crystals with a melilite structure, has been observed. The recorded components of Stokes and anti-Stokes χ (3) -nonlinear lasing are identified with two SRS-active modes, ω SRS1  ~ 908...

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Veröffentlicht in:Doklady. a journal of the Russian Academy of Sciences. Physics 2019-08, Vol.64 (8), p.313-315
1. Verfasser: Kaminskii, A. A.
Format: Artikel
Sprache:eng
Schlagworte:
Classical Mechanics
Crystal structure
Crystals
Magnesium silicates
Mathematical and Computational Physics
Physics
Physics and Astronomy
Raman spectra
Theoretical
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Zusammenfassung:Stimulated Raman scattering in magnesium silicate Ca 2 MgSi 2 O 7 , which enters the family of ‑tetragonal acentric crystals with a melilite structure, has been observed. The recorded components of Stokes and anti-Stokes χ (3) -nonlinear lasing are identified with two SRS-active modes, ω SRS1  ~ 908 cm –1 and ω SRS2 ~ 668 cm –1 , which also manifest themselves in the generation of combined phonon modes ω SRS3C  ~ 170 cm –1 and ω SRS4C ~ 1270 cm –1 .
ISSN:1028-3358
1562-6903
DOI:10.1134/S1028335819080044