Brief Communications

Temperature dependence of the two-photon absorption coefficient of cadmium and zinc diphosphides

M. P. Lisitsa, P. E. Mozol', I. V. Fekeshgazi


Abstract: An experimental study was made of the dependence of the two-photon absorption coefficient on the forbidden-band width of CdP$_2$ and ZnP$_2$ at neodymium laser radiation frequencies. It was found that this dependence was $\beta\sim(2\hbar\omega-E_g)^{1/2}$, typical of the allowed-allowed transitions.

UDC: 621.378.9:539.293:535

PACS: 78.20.Ci, 61.80.Ba

Received: 21.11.1973

 English version: Soviet Journal of Quantum Electronics, 1974, 4:3, 409–410