Small Faraday rotation measurement with a Fabry–Pérot cavity

Abstract

The dependence of the eigenstates of a high-finesse Fabry–Pérot cavity on intracavity circular phase anisotropies is shown to provide a very sensitive method to measure small Faraday rotations. The method is experimentally checked by measuring the Verdet constant of the air and a sensitivity of 10−10 rad is reported.

Faraday spectroscopy in an optical lattice: a continuous probe of atom dynamics

“…One possibility is to work with a Bose condensed sample, in which case the optical density on resonance can be as large as a few hundred for samples containing ~10 6 atoms. Another possibility is to perform Faraday spectroscopy in a buildup cavity [15]. A simple analysis suggests that the measurement sensitivity increases as the square root of the cavity finesse, so that substantial improvement can be achieved even with moderately high-finesse cavities.…”

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

“…The theoretical approach presented here is more general than previous work. In contrast to previous work [2][3][4][5][7][8][9][10], where the recurrent summing up of multiple reflections was used, the presented theory is based on the method of boundary conditions with the application of 4 x 4 matrices. Unlike the theoretical matrix approach in [6], here the dependence of the dielectric tensor of a magneto-active medium on the applied magnetic field is not limited to linear approximation.…”

“…Although much attention has been given to the investigation of transmission and reflection of magneto-optical single-layered [2][3][4][5][6] and multilayer [6][7][8][9][10] resonator structures, there are a number of questions, which require more careful investigation. This paper is dedicated to the theoretical and experimental investigation of the influence of the magnetic field to angular, spectral and polarization characteristics of transmission, reflection and emissivity of a singlelayered Faraday-active Fabry-Perot resonator (F AFR).…”

Transmission, Reflection and Thermal Radiation of a Magneto-Optical Fabry-Perot Resonator in Magnetic Field: Investigations and Applications

“…In the subsequent studies (Jacob et al, 1995;Ling, 1994;Wallenhorst et al 1995) attention was paid to the theoretical and experimental studies of not only the Faraday rotation angle, but also to the studies of a state of light polarization and transmission function of the simple resonance objects such as Fabry-Perot resonators. Based on the obtained results authors have concluded that the application of the Fabry-Perot resonator is an effective method for a measuring of the Faraday rotation, especially in the inefficient media.…”