Nonlinear-laser effects in NH4H2PO4 (ADP) and ND4D2PO4 (DADP) single crystals: almost two-octave multi-wavelength Stokes and anti-Stokes combs, cascaded lasing in UV and visible ranges with the involving of the second and third harmonic generation
✍ Scribed by A.A. Kaminskii; V.V. Dolbinina; H. Rhee; H.J. Eichler; K. Ueda; K. Takaichi; A. Shirakawa; M. Tokurakawa; J. Dong; D. Jaque
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 357 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
We report the experimental investigation of nonlinear cascaded lasing χ^(3)^ ↔ χ^(2)^ effects in UV and visible ranges and high-order Stokes and anti-Stokes generation covering spectral space of about 18000 cm^-1^ by stimulated Raman scattering and multi-wave mixing processes under one-micron picosecond pumping in the paraelectric state of NH~4~H~2~PO~4~ and ND~4~D~2~PO~4~ single crystals. All recorded Raman induced laser wavelengths are identified and attributed to their SRS-promoting vibration modes. Brief review of nonlinear-laser processes in non-centrosymmetric phosphates of KH~2~PO~4~-family and some physical properties of NH~4~H~2~PO~4~ and ND~4~D~2~PO~4~ are given as well.