Four-wave mixing in alkali halide crystals and aqueous solutions |
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Authors: | A Penzkofer J Schmailzl H Glas |
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Institution: | (1) Naturwissenschaftliche Fakultät II-Physik, Universität Regensburg, D-8400 Regensburg, Fed. Rep. Germany |
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Abstract: | Noncollinear phase-matched nonresonant four-photon frequency mixing
p+
p–
L![rarr](/content/xq20342k28341778/xxlarge8594.gif)
s in crystals and aqueous solutions of LiCl, CsCl, KF, and KI is studied. The concentration of the aqueous solutions is varied between 0.5 mol/l and saturation. Picosecond laser pulses of a mode-locked Nd-glass laser are applied as pump pulses. The energy conversion of laser light at frequency
L to frequency
S is measured and the nonlinear susceptibilities (3) are calculated. The dependence of the hyperpolarizabilities on concentration is analysed and gives information on the solute-solvent interaction. |
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Keywords: | 42 65 61 20 |
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