Optical Rotation of Quartz in the Infrared to 9.7mgr;

摘要

The optical rotation of quartz has been observed in the infrared from 2.2 to 9.7&mgr;. The measurements were made with a selenium film transmission polarizer and a similar analyzer; a Perkin‐Elmer Model 12B infrared spectrometer was used as the monochromator and detector. Anomalous rotatory dispersion was found at wavelengths longer than 3.7&mgr;. A tentative qualitative interpretation of the anomaly is suggested.