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Dependence of rotational and vibrational Raman scattering on focusing geometry

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4 Author(s)
M. R. Perrone ; Dipartimento di Fisica, Lecce Univ., Italy ; V. Piccinno ; G. de Nunzio ; V. Nassisi

Stimulated rotational and vibrational Raman scattering in H2 was investigated with a circularly and a linearly polarized XeCl laser beam and the influence of the focusing geometry on the threshold for rotational and vibrational scattering, respectively, was studied. It is shown that with a circularly polarized pump beam a high-angle focusing geometry allows to get only rotational Raman scattering, whereas a low-angle focusing geometry provides only vibrational Raman scattering for gain suppression effects

Published in:

IEEE Journal of Quantum Electronics  (Volume:33 ,  Issue: 6 )