GENERATION OF THE TERAHERZ RADIATION USING CHI((3)) IN SEMICONDUCTOR

被引:27
作者
KHURGIN, JB
机构
来源
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 1995年 / 4卷 / 01期
关键词
D O I
10.1142/S0218863595000082
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A rigorous theory of the difference frequency mixing of two signals, one with frequency omega and the other with frequency near 2 omega, in semiconductors is presented. It is shown that a lower-frequency (DC similar to 10THz) directional photocurrent and voltage are generated as a result of this nonlinear interaction. This result conclusively links the 'directional photogalvanic effect' with the third-order nonlinearity. The magnitude of the difference frequency response is evaluated as a function of frequency and the efficiency of the method is examined for various energy coupling techniques. Comparison with alternative methods for difference frequency generation using the second order nonlinearities is made and the practical applications are considered.
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页码:163 / 189
页数:27
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