Ann. Phys. Fr., Vol. 32, N°2-3 2007, pp. 199-202
DOI: 10.1051/anphys:2008042

Infrared frequency combs and supercontinua for multiplex high sensitivity spectroscopy

J. Mandon¹, E. Sorokin², I.T. Sorokina², G. Guelachvili¹ and N. Picqué<sup>1

1</sup>  Laboratoire de Photophysique Moléculaire, CNRS, Université Paris-Sud, Bâtiment 350, 91405 Orsay Cedex, France
²  Institut für Photonik, TU Wien, Gusshausstrasse 27/387, 1040 Vienna, Austria

Published online: 23 May 2008

Abstract
An infrared high-brightness light source based on supercontinuum generation through a SF6 photonic crystal fiber seeded by a Cr⁴⁺:YAG femtosecond oscillator is developed for high resolution multiplex spectroscopy in the 1.5 m region. Moreover, a multiplex high resolution approach based on a Cr⁴⁺:YAG frequency comb enables to probe large spectral domains, with simultaneous sensitive measurement of the absorption and the dispersion associated with all individual spectral features.

Correspondence: julien.mandon@u-psud.fr


© EDP Sciences 2008

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