Rotation of the spin of particles in optically active media

George C. Baldwin

Ivan A Shcherbakov

N.K. Pleshanov

F. Schuller, Richard B. Warrington, K. P. Zetie +2 more

С. А. Бахрамов

The resonant self-induced optical activity (SIOA) in an atomic alkaline metal vapors has been investigated for the first time. Data on optical polarization rotation are presented and interpreted in terms of the resonance behavior of the third order susceptibility and finite elliptical polarization of real lasers. The limiting action of SIOA on the efficiency of resonance parametric generators and polarization spectroscopy is outlined. The observation of a nonlinear resonant self- induced of the laser beam polarization rotation in ruby crystal (Al2O3:Cr3+) at the laser transition are reported.

V. O. Kozlov, Н. С. Кузнецов, Dmitry S. Smirnov +3 more

It is known that linear birefringence of the medium essentially hinders measuring the Faraday effect. For this reason, optically anisotropic materials have never been considered as objects of the Faraday-rotation-based spin noise spectroscopy. We show, both theoretically and experimentally, that strong optical anisotropy that may badly suppress the regular Faraday rotation of the medium, practically does not affect the measurement of the spatially uncorrelated spin fluctuations. We also show that the birefringent media provide additional opportunity to measure spatial spin correlations. Results of the experimental measurements of the spin-noise spectra performed on Nd^{3+} ions in the uniaxial crystal matrices well agree with the theory.