Abstract:
The nonlinear absorption coefficient β of a CdSe crystal was deduced from the attenuation of the radiation of a single-frequency neodymium laser at liquid-nitrogen and room temperatures. This was done for different orientations of the crystal. The coefficient β was several times higher than the values obtained for multimode laser radiation. Allowance was made for the space-time structure of the laser pulses and for the wave reflected from the exit face of the crystal. A study was made of the nonlinear absorption associated with the conversion of the fundamental-frequency radiation into the second harmonic whose frequency was located within the absorption band of cadmium selenide.
Citation:
F. Bryukner, V. S. Dneprovskii, V. U. Khattatov, “Two-photon absorption in cadmium selenide”, Kvantovaya Elektronika, 1:6 (1974), 1360–1364 [Sov J Quantum Electron, 4:6 (1974), 749–751]
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