Growth and terahertz characterization of Hg1-xCdxTe crystal

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

Journals >Journal of Infrared and Millimeter Waves >Volume 30 >Issue 5 >Page 401 > Article

Journal of Infrared and Millimeter Waves
Vol. 30, Issue 5, 401 (2011)

Growth and terahertz characterization of Hg1-xCdxTe crystal

WANG Reng^1、*, LIN Xing-Cao¹, ZHANG Li-Ping¹, ZHANG Ke-Feng¹, JIAO Cui-Ling¹, LU Ye¹, SHAO Xiu-Hua¹, LI Xiang-Yang¹, GE Jin², HU Shu-Hong², and DAI Ning²

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¹[in Chinese]

²[in Chinese]

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DOI: Cite this Article

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 Copy Citation Text

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Abstract

Different composition Hg_1-xCd_xTe 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.

Keywords

Carrier Hg1-xCdxTe crystal Terahertz time-domain spectroscopy (THz-TDS)

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