Applied physics
No. 6, 2002

Photodetectors and photodetective assemblies for 0,3—11 µm spectral range

A. M. Filachev, V. P. Ponomarenko, I. I. Taubkin, I. D. Burlakov, K. O. Boltar, L. I. Gore-lik, N. V. Kravtchenko, A. V. Kulymanov, K. M. Kulikov, V. E. Lozhnikov, Yu. P. Sharonov

State Unitary Enterprise «RD&P Center "Orion"», Moscow, Russia

Main photoelectric characteristics of high-speed photoelectric semiconductor detectors (PESD) and pho-todetective assemblies (PDA) based on GaP, Si, Ge, InGaAsP/InP photodiodes as well as CdHgTe photodi-odes and photoresistors for 0.3—11 µm spectral range are given. It is noted that the main photoelectric char-acteristics correspond to the up-to-date level of foreign analogs. Results of investigation of PESD and PDA based on CdHgTe photodiodes in a frequency band of up to 1000 MHz at a cooling temperature of from 80 K are given. It is shown that for frequencies of up to 40 MHz photodiodes and photoresistors have close threshold characteristics. Values of heterodyne threshold for CdHgTe photoresistors at operating tempera-tures of 200 and 300 K are given. Main characteristics of a speed thermal cooling PESD based on CdHgTe photoresistor offered for indication of laser radiation in 0.8— 11 µm spectral range are given.

Contents