(under subclass 326) Subject matter wherein the nonlinear optical device involves radiation-active materials in which many lines of frequency-shifted radiation can be obtained in response to incident radiation.
(1) Note. Raman radiation is a radiation produced in response to incident radiation by a change in the rotational or vibrational energy of scattering molecules. The resultant optical radiation is often referred to as Stokes or antiStokes radiation dependent upon its frequency relative to that of the incident light.
