Trigonal Na 3 Li(MoO 4 ) 2 •6H 2 O was found to be an attractive, simultaneously χ (2) -and χ (3) -active nonlinear optical crystal. We investigated its basic optical properties and observed several nonlinear effects, namely many-phonon SRS, almost twooctave Stokes and anti-Stokes lasing combs, SHG,
Orthorhombic tris(glycine) zinc chloride Gly3· ZnCl2 – a new semi-organic many-phonon SRS crystal manifesting different nonlinear-laser (χ(3)+χ(2)) interactions under one-micron picosecond pumping
✍ Scribed by A.A. Kaminskii; L. Bohatý; P. Becker; H.J. Eichler; H. Rhee; J. Hanuza
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 477 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
Nonlinear-laser properties of crystals of non-centrosymmetric orthorhombic semi-organic tris(glycine) zinc chloride Gly 3 •ZnCl 2 are reported in this paper. Under one-micron picosecond pumping many-phonon high-order SRS, a more than two-octaves Stokes and anti-Stokes lasing frequency comb, "Cherenkov"-type SHG, THG, and several cascaded parametric self-sum-frequency generation processes were observed. All recorded Raman-induced laser wavelengths were identified and attributed to the χ (3) -promoting vibration modes of the crystal. A brief review of nonlinear-laser properties of known SRS-active heterodesmic semi-organic crystals with partially ionic bonding character between structural units is given as well.
Example of crystals of Gly3•ZnCl2 grown from aqueous solution
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