Nanosecond Detector of Infrared Radiation Based on Thin Pyroelectric Films

S. D. Ivanov, E. G. Kostsov*, and V. S. Sobolev
Translated by D. Safin

Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Correspondence to: *e-mail:

Received 31 May, 2016

Abstract—The features of detection of short radiation pulses by thermal detectors based on thin pyroelectric films with the radiation energy deposited in a thin absorbing electrode are considered. It is demonstrated that the minimum response time of the sample to radiation pulses is determined by the time of thermal relaxation of the absorbing electrode. Specifically, picosecond pulses may be detected with a 0.5-μm-thick pyroelectric film and a 0.01-μm-thick absorbing electrode.

Keywords: pyroelectricity, nanosecond pulses, thin film, IR radiation

DOI: 10.1134/S106422691709011X