Abstract
Nonlinear coherent Raman scattering with ultra-short pulse lasers has opened up new opportunities for non-intrusive three-dimensional label-free chemical sensing [1]. A single ultrashort pulse laser, combined to a pulse shaper or a Michelson interferometer (for a review, see [2]), allows for multiplex measurements. However, measuring a broad spectral bandwidth spectrum at high resolution within a very short acquisition time still remains a challenge. Recently dual-comb spectroscopy, which features such characteristics for linear absorption, has been extended to nonlinear spectroscopy in a proof-of-principle experiment based on stimulated Raman scattering [3].
© 2013 IEEE
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