LWIR heterodyne HgCdTe detectors

K. O. Boltar; I. D. Bourlakov; S. V. Golovin; V. E. Lognikov; N. G. Mansvetov

doi:10.1117/12.407711

28 November 2000 LWIR heterodyne HgCdTe detectors

K. O. Boltar, I. D. Bourlakov, S. V. Golovin, V. E. Lognikov, N. G. Mansvetov

Proceedings Volume 4340, 16th International Conference on Photoelectronics and Night Vision Devices; (2000) https://doi.org/10.1117/12.407711
Event: XVI International Conference on Photoelectronics and Night Vision Devices, 2000, Moscow, Russian Federation

Abstract

Single element and linear array photodetectors operating in heterodyne mode for CO₂ laser radiation detection have been developed and investigated. P-type mercury cadmium telluride (MCT) crystal with x=0.21 composition and hole concentration 1x10¹⁶ cm^-3 at T=77K were used as substrates. The p-n junctions in p-type MCT were formed by ion implantation. Detector was packaged in metal-glass dewar together with preamplifier. Cooling was performed by liquid nitrogen. Single-element heterodyne detector with p- n junction area 300X300 micrometers operates at frequencies up to 100 MHz. The noise equivalent power (NEP) at 10,6 micrometers wavelength is equal to 5x10²⁰ W/Hz for an applied local oscillator power 0,5 mW. 10-element photodiode linear array heterodyne detector been developed and investigated.

Citation Download Citation

K. O. Boltar, I. D. Bourlakov, S. V. Golovin, V. E. Lognikov, and N. G. Mansvetov "LWIR heterodyne HgCdTe detectors", Proc. SPIE 4340, 16th International Conference on Photoelectronics and Night Vision Devices, (28 November 2000); https://doi.org/10.1117/12.407711

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