Growth and terahertz characterization of Hg1-xCdxTe crystal
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    Abstract:

    Different composition Hg1-xCdxTe crystals were grown by THM method. The optical properties of Hg1-xCdxTe crystals were investigated by using the Fourier transform infrared spectroscopy and transmission mode THz time-domain spectroscopy. The transmission was approached to zero in 0.2~1.5 THz frequency range as Cd composition of Hg1-xCdxTe crystal was lower than 0.279. A TA phonon model of Hg1-xCdxTe crystal was observed at 0.9 THz. Drude model was applied for simulation, which fitted well with the experimental results. The carrier densities of the Hg1-xCdxTe (x=0.388 and 0.326) were also characterized, which agreed with the experimental results.

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WANG Reng, LIN Xing-Cao, ZHANG Li-Ping, ZHANG Ke-Feng, JIAO Cui-Ling, LU Ye, SHAO Xiu-Hua, LI Xiang-Yang, GE Jin, HU Shu-Hong, DAI Ning. Growth and terahertz characterization of Hg1-xCdxTe crystal[J]. Journal of Infrared and Millimeter Waves,2011,30(5):401~406

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History
  • Received:July 20,2010
  • Revised:August 17,2010
  • Adopted:August 26,2010
  • Online: October 20,2011
  • Published:
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