Open AccessINFRARED RADIATION CONVERTER BASED ON FABRY – PEROT MICRORESONATORS
Author(s) -
В. А. Пилипович,
В. Б. Залесский,
А. И. Конойко,
В. М. Кравченко,
К. А. Рещиков
Publication year - 2018
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ fìzìka-matèmatyčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2415
pISSN - 1561-2430
DOI - 10.29235/1561-2430-2018-54-2-234-240
Subject(s) - fabry–pérot interferometer , optics , radiation , resonator , optoelectronics , transmittance , reflection (computer programming) , infrared , materials science , radiation properties , optical radiation , radiant intensity , physics , wavelength , computer science , programming language
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.