Selection rules governing Brillouin light scattering from the vibrational eigenmodes of a homogeneous, free-surface submicron sphere have been derived using group theory. The derivation is for the condition where the sphere diameter is of the order of the excitation light wavelength. Well-resolved spectral data obtained from Brillouin light scattering from submicron silica spheres provide experimental verification of the selection rules.
@article{arxiv.0802.3962,
title = {Selection rules for Brillouin light scattering from eigenvibrations of a sphere},
author = {Y. Li and H. S. Lim and S. C. Ng and Z. K. Wang and M. H. Kuok},
journal= {arXiv preprint arXiv:0802.3962},
year = {2009}
}