Scientific Results

Resonant anti-stokes generation of the rotational Raman scattering in NH3 and CH3F

Year: 2011

Authors: Marchetti S.

Autors Affiliation: Istituto Nazionale di Ottica, INO-CNR, U.O.S. di Pisa, “Adriano Gozzini”, Via G Moruzzi 1, I-56124 Pisa, Italy

Abstract: The anti-stokes scattering corresponding to a resonant rotational Raman scattering has been observed in NH3 and CH3F. The anti-stokes frequency is resonant with a transition of the overtone vibrational band n = 0 -> 2, and it is generated by mixing the pump with a resonant rotational stokes emission induced inside the vibrational level n = 1. The gain of this anti-stokes scattering is very weak but, due to the mixing nature of the anti-stokes process, a detectable emission is produced when an high gain rotational Raman scattering is induced by means of an high power pump and a suitable stokes resonator. (C) 2010 Elsevier B.V. All rights reserved.


Volume: 54      Pages from: 48  to: 51

KeyWords: raman; antistokes; infrared
DOI: 10.1016/j.infrared.2010.11.003

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