NOT KNOWN FACTUAL STATEMENTS ABOUT MAGNETO-OPTICAL CRYSTAL

各向异性透明晶体如方解石、石英等的折射率，是其固有的特性，称为永久双折射。The lower section from the Michel-Levy chart (x-axis) marks the orders of retardation in multiples of about 550 nanometers. The world concerning zero and 550 nanometers is known as the first order of polarization colors, as well as magenta