INFRARED RADIATION CONVERTER BASED ON FABRY – PEROT MICRORESONATORS
https://doi.org/10.29235/1561-2430-2018-54-2-234-240
Abstract
The method of transformation of information from one spectral range to another based on Fabry – Perot microresonators is offered. The method uses incident radiation of an object as affecting a microresonator material (a microresonator material must absorb this radiation), and visible radiation of the optical part of the spectrum as sensing, or reading radiation (a microresonator material should not absorb this radiation). The absorbed energy of incident radiation leads to a change in a microcavity temperature, which results in a change in the optical base of the resonator. The high sensitivity of the Fabry – Perot microcavities is a consequence of the fact that the principle of their operation is based on the physical phenomenon of multipath interference. A common shortcoming of the Fabry – Perot standards is their sensitivity to operating conditions, for example, to a change in the ambient temperature, which also leads to a change in the optical base of the resonator, as well as the influence of IR radiation. This leads to a shift in the spectral characteristics of transmittance or reflection of the Fabry – Perot standards, which worsens their performance characteristics. The method allows one to minimize the environmental temperature fluctuation influence on characteristics of the Fabry – Perot microresonator, which is an element that transforms the information from one spectral range to another. Minimization is performed when the starting temperature point of the microresonator corresponds to a maximum change in the probing radiation intensity due to the temperature.
About the Authors
V. M. PilipovichRussian Federation
Vladimir M. Pilipovich – Academician, D. Sc. (Physics and Mathematics), Chief Researcher.
68-2, Nezavisimosti Ave., 220072, Minsk.
V. B. Zalesski
Russian Federation
Valery B. Zalesski – Ph. D. (Engineering), Head of the Laboratory.
68-1, Nezavisimosti Ave., 220072, Minsk.
A. I. Kanojka
Russian Federation
Alexey I. Kanojka – Ph. D. (Physics and Ma thematics), Assistant Professor, Senior Researcher.
68-1, Nezavisimosti Ave., 220072, Minsk.
V. M. Kravchenko
Russian Federation
Vladimir M. Kravchenko – Ph. D. (Engineering), Leading Researcher.
68-1, Nezavisimosti Ave., 220072, Minsk.
K. A. Reshikov
Russian Federation
Konstantin A. Reshikov – Postgraduate Student.
6, P. Brovka Str., 220013, Minsk.
References
1. Tarasov V. V., Yakushenkov Yu. G. Modern Problems of Infrared Technology. Moscow, Moscow State University of Geodesy and Cartography, 2011. 84 p. (in Russian).
2. Mustel' E. P., Parygin V. N. Methods of Light Modulation and Light Scanning. Moscow, Nauka Publ, 1970. 296 p. (in Russian).
3. Yariv A., Yeh P. Optical Waves in Crystals. New York, Wiley, 1984. 589 p.
4. Ming Wu, Cook J., DeVito R., Jun Li, Ma E., Murano R., Nemchuk N., Tabasky M., Wagner M. Novel low-cost uncooled infrared camera. Infrared Technology and Applications XXXI, 2005, vol. 5783, pp. 69401I-1. https://doi.org/10.1117/12.603905
5. Born M., Vol'f E. Principles of Optics. Moscow, Nauka Publ, 1973. 720 p. (in Russian).