We found that the coupling of ground and excited configurations are different. The ground configurations of L S coupling is larger,and not negligible. The dependance of Faraday rotation on temperature in Ce substituted yttrium iron garnet is calculated based on the quantum theory.
In this paper, Two single crystals of Magneto Optic Garnets(YBiGd)Fe 5O 12 (BiGd∶YIG) and (YGd) 3 Fe 5O 12 (Gd∶YIG),which have high Faraday rotation and low temperature sensibility, were grown from high temperature melt.
The Ce substitution prominently enhances the Faraday effect, and the enhanced Faraday rotation is as large as 0 6×10 4 deg/cm per Ce ion at λ=0 78μm,which surpasses by a factor of two but opposite in sign to the well known MO enhancement by Bi 3+ in iron garnets at the same wavelength region.
The crystal has the specific Faraday rotation angle 404deg/cm, magneto optic figure of merit 25.8deg/dB, saturation magnetic field 1400Oe, and temperature coefficient 4.2×10 -4 K -1 (at room temperature, λ=1.55μm).
(2) it is found that there is a close relationship between indices of scintillation and fluctuations of the Faraday rotation, the correlation coefficient between their occurrences is larger than 0.8. Furthemore, it is estimated that both the correlation coefficient between occurrences nighttime scintillation and spread-F and that between occurrences of daytime scintillation and sporadic E are 0.60 and 0.55, respectively.
It is found that the glasses are characterized by high magnitudes of the Faraday rotation and the magnetooptic figure of merit in the spectral range 1.3-1.5 μm.
A polarointerferometer designed for studying magnetic fields in high-temperature laser or electricdischarge plasma with the method of measuring the Faraday rotation of the plane of polarization of a probing laser beam is described.
The emerging Faraday rotation causes the radiation to be depolarized.
The Faraday rotation of the polarization plane during the propagation of a photon in a medium with a magnetic field is considered as the main effect.
Our main goal is to derive simple asymptotic formulas for the polarization of radiation in the case where the Faraday rotation angle Ψ ? 1 at the Thomson optical depth τ = 1.