Accession Number : AD0290777

Title :   ON THE SPIN CONTRIBUTION TO THE VERDET CONSTANT

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : FINKEL,J.

Report Date : 24 JUL 1962

Pagination or Media Count : 14

Abstract : The Faraday rotation in a gas exhibiting an electric and magnetic susceptibility is shown to be proportional to the sum of two independent terms. One term is the difference between the real parts of the complex magnetic susceptibilities for right and left circularly polarized radiation,AND THE SECOND TERM IS THE DIFFERENCE BETWEEN THE REAL PARTS OF THE COMPLEX ELECTRIC SUSCEPTIBILITIES FOR THE TWO STATES OF POLARIZATION OF THE RADIATION. From Hamiltonians containing the interaction of the spin magnetic moment of the electrons with the magnetic field of the radiation, the imaginary parts of the magnetic susceptibilities for right and left circular polarization are calculated. The dispersion relations appropriate to tensor media is then applied yielding the difference between the real parts of the magnetic susceptibilities for the two states of circular polarization. An expression is then derived for the magnetic susceptibility contribution to the verdet constant. For frequencies much greater than the Zeeman splitting this expression is frequency independent. It depends only on the concentration, temperature, and spin. It is suggested that this expression should be applicable to alkali vapors and orthohelium. (Author)

Descriptors :   *GASES, *MAGNETIC PROPERTIES, *MAGNETOOPTICS, DIRECT CURRENT, ELECTROMAGNETIC FIELDS, ELECTRONS, MAGNETIC MOMENTS, NUCLEAR SPINS, PARTIAL DIFFERENTIAL EQUATIONS, PERTURBATION THEORY, QUANTUM THEORY, VECTOR ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE