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Length dependence of forward and backward THz DFG in a strongly absorptive material
Conference paper

Length dependence of forward and backward THz DFG in a strongly absorptive material

Yen-Chieh Huang, Ming-Yuen Chuang, Yen-Hou Lin, Ching-Han Lee, Tsong-Dong Wang, Yen-Yin Lin and Fan-Yi Lin
Proceedings of SPIE - The International Society for Optical Engineering, Vol.7917, 79170I
2011
DOI: https://doi.org/10.1117/12.875948

Abstract

Difference frequency generation Lithium niobate THz wave
Some believes that the useful length of THz different frequency generation (DFG) in a highly absorptive material is comparable to the absorption length of the THz wave. We show in theory and experiment that it is only true for backward THz DFG. For forward DFG with strong idler absorption, the THz wave can continue to grow with the length of a DFG crystal. © 2011 SPIE.

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