Demos Stavros G, Raman Rajesh N, Yang Steven T, Negres Raluca A, Schaffers Kathleen I, Henesian Mark A
Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA 94551, USA.
Opt Express. 2011 Oct 10;19(21):21050-9. doi: 10.1364/OE.19.021050.
The spontaneous Raman scattering cross sections of the main peaks (related to the A1 vibrational mode) in rapid and conventional grown potassium dihydrogen phosphate and deuterated crystals are measured at 532 nm, 355 nm, and 266 nm. The measurement involves the use of the Raman line of water centered at 3400 cm-1 as a reference to obtain relative values of the cross sections which are subsequently normalized against the known absolute value for water as a function of excitation wavelength. This measurement enables the estimation of the transverse stimulated Raman scattering gain of these nonlinear optical materials in various configurations suitable for frequency conversion and beam control in high-power, large-aperture laser systems.
