Electric-field-modulated light scattering near a morphological resonance of a trapped aerosol particle

S. Arnold, D. E. Spock, L. M. Folan

Research output: Contribution to journalArticle


We describe electric-field-induced fluctuations in the elastic scattering near optical resonances of a spherical aerosol particle trapped at the null point of an electrodynamic levitator. The particle is apparently driven into a quadrupolar distortion by the electromechanical stress at its surface. Our results coupled with recent theory indicate that the effect is principally due to a modulation in the frequencies of individual optical resonances, that a coherent distortion smaller than one part in 105 (∼0.1 nm) is detected, and that the effect may be used for a continuous probe of surface tension and bulk viscosity.

Original languageEnglish (US)
Pages (from-to)1111-1113
Number of pages3
JournalOptics Letters
Issue number20
StatePublished - Oct 15 1990


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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