High-speed photodetectors and photodetective assemblies for receiving laser radiation in 0.3/11μm spectral range

摘要

Results of studying photodetectors (FD) and photodetecting assemblies (PDA) provided for receiving lased radiation in 0.2/12 μm range are given in the paper. A possibility of using low-frequency Cd_xHg_(1-x)Te photoresistors for recording CO_2-laser pulses of up to 20 ns duration is discussed. Photodiodes and photoresistors are compared when operating in an optical detector with heterodyning.