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Potassium and ammonium hydrogen phthalates KHC6H4(COO)2 and (NH4)HC6H4(COO)2 – new organic crystals for Raman laser converters with large frequency shift

✍ Scribed by A.A. Kaminskii; S.N. Bagayev; V.V. Dolbinina; E.A. Voloshin; H. Rhee; H.J. Eichler; J. Hanuza

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
170 KB
Volume
6
Category
Article
ISSN
1612-2011

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✦ Synopsis

Raman-induced many-phonons Stokes and anti-Stokes generation in a orthorhombic crystals KHC6H4(COO)2 and (NH 4 )HC 6 H 4 (COO) 2 under picosecond pumping has been observed. All recorded nonlinear lasing lines in the visible and near-IR regions are identified and attributed to the χ (3)promoting vibration modes of these orthorhombic phthalates. SRS intensity, arb. units 1 0 2 3 4 KHC6H4(COO)2 0.4 0.5 0.6 0.7 0.8 0.9 Wavelength, μm 0.53207* 0.5632 0.6362 0.7909 ωSRS1 ≈ 1040 cm -1 ωSRS2 ≈ 3075 cm -1

Room-temperature SRS and RFWM spectrum of an orthorhombic KHC 6H4(COO)2 single crystal

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