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Cascaded nonlinear-laser interactions in melilite-type crystals of Sr2MgGe2O7 and Ba2ZnGe2O7

✍ Scribed by A.A. Kaminskii; L. Bohati; P. Becker; J. Liebertz; H.J. Eichler; H. Rhee; J. Hanuza

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 448 KB
Volume: 7
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.201010016

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✦ Synopsis

The tetragonal germanates Sr 2 MgGe 2 O 7 and Ba2ZnGe2O7 were found to be attractive, simultaneously χ (2)and χ (2) -active nonlinear multifunctional crystals. Their basic optical properties were investigated and numerous nonlinearlaser effects, among them SRS, more than one-octave Stokes and anti-Stokes combs, SHG, THG, SFG, and efficient cascaded self-conversion (χ (3) ↔ χ (2) )-generation were observed in the visible and UV range. All recorded nonlinear-lasing components were identified and attributed to SRS-promoting vibration modes of the studied crystals.

Example of a color image of conical multi-wavelength anti-Stokes generation ("anti-Stokes rainbow")

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