Optical Second-Harmonic Generation in Paratellurite and Kleinman's Symmetry Relations
- 15 March 1972
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 20 (6), 222-223
- https://doi.org/10.1063/1.1654119
Abstract
The second harmonic of a 1.064‐μ Nd3+ YAG laser has been observed in paratellurite This effect is forbidden by Kleinman's relations. The only nonvanishing nonlinear coefficient d14 has been measured relative to quartz by the Maker‐fringe technique and to KDP under phase‐matching conditions. It has been inferred that d14=1.4×10−9 esu and δ14=3.8×10−8 esu. The latter value is 40 times lower than the average over all the known materials.Keywords
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