Abstract
A droplet in the micrometer-size range acts as a lens to enhance the internal intensity (with frequency ωl) and as an optical cavity to provide feedback at specific wavelengths corresponding to the morphology-dependent resonances (MDRs) of a sphere. These can be envisioned as counterpropagating guided waves circumnavigating the droplet rim. The input intensity in the IR necessary to achieve first-order stimulated Raman scattering (SRS) in a micrometer-size droplet is consequently much lower than in a centimeter-long cell.
© 1989 Optical Society of America
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