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Updated: May 13, 2026
Observation and Analysis of Blinking Surface-enhanced Raman Scattering
Published on: January 11, 2018
Experimental observation of stimulated low-frequency Raman scattering in water suspensions of silver and gold
N V Tcherniega1, K I Zemskov, V V Savranskii
1P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia.
Abstract:
In this Letter we report on experimental observation of stimulated low-frequency Raman scattering (SLFRS) in gold and silver nanoparticle suspensions excited by 20 ns ruby laser pulses, SLFRS propagated in forward and backward directions with a maximum conversion efficiency up to 20%. Frequency shift for silver nanoparticle suspension was found to be 0.33 THz and for gold nanoparticle suspension 0.435 THz. This type of stimulated scattering of light can be used as an effective source of biharmonic pumping for solving a large number of practical tasks.
