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

作者：Kaminskii A A^*; Bagayev S N; Dolbinina V V; Voloshin A E; Rhee H; Eichler H J; Hanuza J

来源：Laser Physics Letters, 2009, 6(7): 544-551.

DOI：10.1002/lapl.200910020

• Raman crystal
• KHC6H4(COO)(2) crystal
• (NH4)HC6H4(COO)(2) crystal
• potassium hydrogen phthalate
• ammonium hydrogen phthalate
• many-phonon stimulated Raman scattering
• SRS
• cross-cascaded chi((3)) < -> chi((3)) interaction

Raman-induced many-phonons Stokes and anti-Stokes generation in a orthorhombic crystals KHC6H4(COO)(2) and (NH4)HC6H4(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 chi((3))-promoting vibration modes of these orthorhombic phthalates.
[GRAPHICS]
Room-temperature SRS and RFWM spectrum of an orthorhombic KHC6H4(COO)(2) single crystal

• 出版日期2009-7