Abstract

This study investigates the stimulated Raman scattering (SRS) of ${\mathrm{H}}_2{\mathrm{O}}_2–{\mathrm{H}}_2\mathrm{O}$ mixtures. The laser-induced plasma nanoshock wave is formed by focusing an intense pulsed 532 nm laser beam on the mixtures. An enhancement at the low-frequency $1715{\mathrm{cm}}^{-1}$ SRS line of the bending mode of ${\mathrm{H}}_2{\mathrm{O}}_2$ is observed. The mechanism of enhancement was attributed to nanoshock wave resonance with the bending mode, which would preferentially excite phonon and lower energy molecular vibrations.

© 2015 Optical Society of America

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