Faraday-active Fabry–Perot resonator: transmission, reflection, and emissivity

Abstract

The propagation of light within a semiconductor Faraday-active Fabry-Perot resonator (F AFR) is investigated theoretically and experimentally. It is shown that an external magnetic field radically changes the angular and spectral characteristics of transmission, reflection and emissivity of the resonator not only for polarized, but also for unpolarized light. Suppression of interference patterns and phase inversion of the interference extrema were observed in both monochromatic and polychromatic light. The investigations were carried out for the planeparallel plates of n-InAs in the spectral range of free charge carrier absorption. The results can be used to create new controllable optical and spectroscopic devices for investigation of Faradayactive material properties and for control of parameters of plane-parallel layers and structures.

Thermal emission of one-dimensional magnetophotonic crystals

“…The presented theoretical approach is based on the method of boundary conditions with the application of 4 × 4 matrices. It extends the theory [33] to multilayer structures and describes completely the spectral, angular and polarization properties of TE of MPCs. The nonlinear dependence of the dielectric tensor of a magneto-active medium on the applied magnetic field, which is important for MPCs based on doped semiconductors, is used.…”

“…Investigations of Fabry-Perot-like magneto-optical (MO) layers [33][34][35] have shown that a combination of the Faraday effect with cavity resonances enables us to control the spectral and directional properties of coherent TE by external magnetic field. In this paper, we report a theoretical study of TE of a multilayer structure with an MO layer inside-the so-called 1D magnetophotonic crystal (MPC).…”