Remote nonlinear polarization Raman spectroscopy
Bunkin A. F., Galumyan A. S., Mal'tsev D. V.
A new method of remote Raman spectroscopy has been demonstrated experimentally. In this method, the signal level is more than 106 times the level of the signal corresponding to spontaneous Raman scattering. The divergence of the measured light is 2 Χ10-4. The method can be used to study the vibrational spectra of transparent media at large distances.