This article is cited in 8 papers

Two-photon absorption in cadmium selenide

F. Bryukner, V. S. Dneprovskii, V. U. Khattatov


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.

UDC: 621.375.82

PACS: 42.50.Gy, 42.55.Rz, 42.65.Ky, 42.60.Jf, 42.70.Hj, 42.70.Mp

Received: 18.01.1974

 English version: Soviet Journal of Quantum Electronics, 1974, 4:6, 749–751