Magnetic Circular Dichroism in Ruby

Abstract
The dispersion of magnetic circular dichroism in the region of the B lines in ruby has been measured at room temperature. The corresponding theoretical dispersion curves have been calculated by the use of the damped-oscillator shapes for the absorption lines and appropriate g -factors for the ground and excited states. The agreement between the experimental and theoretical curves is excellent, which in turn confirms the validity of the theory now available for magnetic circular dichroism in absorption regions.