# Perturbation theory of optical resonances of deformed dielectric spheres

@article{Aiello2018PerturbationTO, title={Perturbation theory of optical resonances of deformed dielectric spheres}, author={Andrea Aiello and Jack G E Harris and Florian Marquardt}, journal={arXiv: Optics}, year={2018} }

We analyze the optical resonances of a dielectric sphere whose surface has been slightly deformed in an arbitrary way. Setting up a perturbation series up to second order, we derive both the frequency shifts and modified linewidths. Our theory is applicable, for example, to freely levitated liquid drops or solid spheres, which are deformed by thermal surface vibrations, centrifugal forces or arbitrary surface waves. A dielectric sphere is effectively an open system whose description requires… CONTINUE READING

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