TRANSMISSION 2ND-HARMONIC GENERATION IN CD1-XMNXTE AT 1.064 MU-M

Second harmonic generation, created by nanosecond Nd:YAG laser pulses at 1.064 mu m with relatively low intensity in Cd1-xMnxTe bulk crystal s and thin layers was measured in transmission geometry. The effect pr actically occurs in a very thin surface layer of the material and it i s used as a relatively straight forward method of layer quality charac terization. It is shown that the angular dependence of the second harm onic generation intensity in thin layers of CdTe with good crystallogr aphic (and optical) quality agrees very well with the theory in contra ry to the samples with some distortions from the ideal structure which exhibits large distortions from the theory.