Double-resonance stimulated Raman scattering from optically levitated glycerol droplets

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Abstract
Experimental confirmation of stimulated Raman scattering (SRS) in micrometer-sized droplets supported simultaneously by resonances at the incident (input) laser wavelength and at the emitted (output) SRS wavelength is provided. Identified mode orders of contributing input resonances increase with droplet radii over the size range investigated (∼5.4–7.4-μm radius). Measured SRS spectra reveal that the mode order of the input and output resonances coincide in 90% of the cases studied.