Dual and incident circular polarization Raman optical activity backscattering of (—)-trans-pinane

Abstract

We report the first measurement of dual circular polarization (DCP) Raman optical activity (ROA). DCP ROA was predicted recently to be a new form of ROA in which the incident and scattered light beams are synchronously modulated between right and left circular polarization states. Using a new backscattering apparatus and (—)-trans-pinane, we confirm the theoretical predictions and compare our results to the conventional incident circular polarization (ICP) form of ROA.