High-resolution interferometric spectra of the stimulated Raman scattering (SRS) spectra from flowing ethanol droplets are presented. The linewidths of the SRS peaks are less than 0.005 cm−1, and the equal frequency spacings of the SRS peaks are an order of magnitude smaller than the spacings for morphology-dependent resonances of a perfect sphere. The observed results from droplets that are deformed by inertial effects are consistent with T-matrix and perturbation predictions of frequency splitting into the various azimuthal modes of a (2n + 1)-degenerate morphology-dependent resonance with angular momentum n in a perfect sphere.
© 1991 Optical Society of America
Original Manuscript: April 15, 1991
Published: August 15, 1991
Gang Chen, Steven C. Hill, Peter W. Barber, and Richard K. Chang, "Frequency splitting of degenerate spherical cavity modes: stimulated Raman scattering spectrum of deformed droplets," Opt. Lett. 16, 1269-1271 (1991)