Abstract

Fluorescence seeding by dissolving a fluorescent dye in a liquid droplet enhances the stimulated Raman scattering of a weaker-gain Raman mode. With the dye fluorescence at the Stokes wavelength of the weaker-gain Raman mode, the weaker-gain Raman mode can now build up from the much stronger fluorescence instead of from the weaker spontaneous Raman scattering. With fluorescence seeding, the weaker-gain C — C — O Raman mode of ethanol can be observed at a much lower input-laser intensity and can be more intense than the stronger-gain C — H Raman mode.

© 1992 Optical Society of America

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