Peculiarities of detecting of radiation from small size radiators

Evgenij A. Salkov; George S. Svechnikov; Nikolai M. Krolevets

doi:10.1117/12.280416

26 August 1997 Peculiarities of detecting of radiation from small size radiators

Evgenij A. Salkov, George S. Svechnikov, Nikolai M. Krolevets

Proceedings Volume 3182, Material Science and Material Properties for Infrared Optoelectronics; (1997) https://doi.org/10.1117/12.280416
Event: Material Science and Material Properties for Infrared Optoelectronics, 1996, Uzhgorod, Ukraine

Abstract

This paper reviews an attempt to formulate requirements for the semiconductor materials which arise in thermal radiation detection by means of a photodetector when the radiator is of small size or it consists of aggregation of small emitters. Practical necessity of the analysis is connected with the problem of adequate identification of the small objects. This seems to be of interest because of wide spread of IR vision into a new area of applications of science and technology. The above reasons require to take into account the physical peculiarities of the emitters to determine the real capabilities of the detectors. Restrictions of mode number of a blackbody radiator within the cavity of a small fixed volume were examined in connection with photo detecting process. The role of size-correction in the thermal radiation distribution, specific detectivity and the detecting time have ben shown. Critical values of mean size of the cavity which control character of fluctuation and statistics of signal processing were evaluated. Specific requirements for the sensitive materials of photo detector were described.

Citation Download Citation

Evgenij A. Salkov, George S. Svechnikov, and Nikolai M. Krolevets "Peculiarities of detecting of radiation from small size radiators", Proc. SPIE 3182, Material Science and Material Properties for Infrared Optoelectronics, (26 August 1997); https://doi.org/10.1117/12.280416

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