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Laser Emission from Individual Droplets at Wavelengths Corresponding to Morphology-Dependent Resonances,
YALE UNIV NEW HAVEN CT CENTER FOR LASER DIAGNOSTICS
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Inelastic emission characteristics from individual ethanol droplets 60-micrometers diameter containing Rhodamine 6G dye and pumped by a cw laser 514.5 nm were investigated. Laser emission was confirmed by noting the spectral, temporal, and output-versus-input intensity behavior. The liquid-air boundary of the droplets provides the optical feedback at selected wavelengths corresponding to the morphology-dependent resonances of a spherical droplet.
APPROVED FOR PUBLIC RELEASE