Research of operation of anisotropic optical thermoelement with lateral temperature regulation
The object of research is a direct mutual conversion of thermal and electrical energy using anisotropic optical thermoelectric elements (AOTE). Receivers of through-type radiant flux, containing optically transparent heat sinks, to which the AOTE attach with the help of an adhesive dielectric layer, lead to a significant distortion of the amplitude-phase characteristics of the transmitted radiant flux. This is limited the energy and timing characteristics of receivers. Therefore, the task of creating such design of the receiver, which would be free of these shortcomings, is necessary. The design of a radiant flux receiver based on an anisotropic optical thermoelement is developed and tested, and the amplitude-phase characteristics of the flux do not change during its passage. The receiver can be used as a filter or a semitransparent mirror of an optical resonator. Such effect is due to the fact that at a thickness of 1 cm AOTE is selected with parameters a= 10<sup>-4</sup> V/K, χ= 10<sup>-2</sup> W/(cm·K), r= 10<sup>-3</sup>Ω, current I = 10 A and temperature of the thermostat 300 K cm gives the minimum temperature of 239 K. A separate anisotropic thermoelement, which is made of a material with the same kinetic parameters under the same conditions, yields 265 K. Thus AOTE leads to an increase in the temperature drop.