Characterization of doped ZnCdTe crystals as THz emitters

Xiu-min Wang; Yu-lei Shi; Yu-ping Yang

doi:10.1117/12.835695

4 August 2009 Characterization of doped ZnCdTe crystals as THz emitters

Xiu-min Wang, Yu-lei Shi, Yu-ping Yang

Proceedings Volume 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications; 738507 (2009) https://doi.org/10.1117/12.835695
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

Characterization of doped ZnCdTe crystals as terahertz (THz) emitters is studied in detail. By measuring the absorption of THz wave and analyzing the phase matching condition in these crystals, it is found that the dispersion property of crystals and the self-absorption of THz waves in these crystals play important roles in THz radiation. It is also found that the direct current (DC) resistivity of the crystal for THz emitter application should be greater than 10⁶Ωcm. The THz generation efficiency increases as their DC resistivity increases, but the efficiency saturates and even declines when the resistivity goes beyond 10⁶Ωcm.

Citation Download Citation

Xiu-min Wang, Yu-lei Shi, and Yu-ping Yang "Characterization of doped ZnCdTe crystals as THz emitters", Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 738507 (4 August 2009); https://doi.org/10.1117/12.835695

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