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Detection of terahertz and sub-terahertz wave radiation based on hot-carrier effect in narrow-gap Hg₁₋xCdxTe

Zabudsky V., Dobrovolsky V., Momot N.

Opto-Electronics Review

2010

Vol. 18, No. 3

300-304

We have proposed and developed terahertz and subterahertz wave detector using hot-carrier effect in narrow-gap Hg₁₋xCdxTe. Epitaxial Hg₁₋xCdxTe -layers were integrated into dipole antennas. The response of Hg₁₋xCdxTeTe hot-electron bolometer was measured in the range of frequencies 0.037-1.58 THz, in the temperature region T = 68-300 K at various bias currents. A bolometer theoretical model was developed and the experimental results confirm the model main conclusions.