Abstract

A simplified experimental arrangement, in which the laser beams are counter-propagating, has allowed the acquisition of Raman gain spectra without the aid of optically dispersive devices. The method allows high spectral resolution with the spatial rejection of fluorescence typical of coherent Raman techniques. Access to the low-frequency spectral region has revealed stimulated gain involving mechanical waves of the bulk medium. Quasi-continuous scans of the entire vibrational region have been made using only two laser dyes.

Characteristics of picosecond coherent anti-Stokes Raman spectroscopy with mode-locked dye lasers in comparison with stimulated Raman gain

M. De Mazière, M. Baggen, M. van Exter, and A. Lagendijk
J. Opt. Soc. Am. B 7(5) 726-738 (1990)

Enhancement of stimulated Raman scattering of weak-gain Raman modes in a pendant drop by dye-lasing gain

Xiao-Yun Pu, Zheng Yang, and Wing-Kee Lee
J. Opt. Soc. Am. B 21(2) 343-348 (2004)

Pulsed Dye Laser System for Raman and Luminescence Spectroscopy

M. I. Bell and R. N. Tyte
Appl. Opt. 13(7) 1610-1614 (1974)

Feasibility of nonlinear Raman lidar based on stimulated Raman gain spectroscopy without a tunable laser

Nilesh J. Vasa, Akihiro Hatada, Shinichiro Nakazono, Yuji Oki, and Mitsuo Maeda
Appl. Opt. 41(12) 2328-2332 (2002)

Saturable absorber properties of a laser dye; stimulated propagation of the pump flux

P. R. Hammond
Appl. Opt. 18(4) 536-539 (1979)