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Journal Article

Theory of anisotropic whispering-gallery-mode resonators

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Ornigotti,  Marco
Optics Theory Group, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Aiello,  Andrea
Optical Quantum Information Theory, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Ornigotti, M., & Aiello, A. (2011). Theory of anisotropic whispering-gallery-mode resonators. PHYSICAL REVIEW A, 84(1): 013828. doi:10.1103/PhysRevA.84.013828.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-69B7-1
Abstract
An analytic solution for a uniaxial spherical resonator is presented using the method of Debye potentials. This serves as a starting point for the calculation of whispering gallery modes (WGMs) in such a resonator. Suitable approximations for the radial functions are discussed in order to best characterize WGMs. The characteristic equation and its asymptotic expansion for the anisotropic case is also discussed, and an analytic formula with a precision of the order O[nu(-1)] is also given. Our careful treatment of both boundary conditions and asymptotic expansions makes the present work a particularly suitable platform for a quantum theory of whispering gallery resonators.