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Updated: Jun 7, 2025

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
Published on: April 4, 2016
Bound states in the continuum in whispering gallery resonators with pointlike impurities
M A Figueroa1, Vladimir Juričić2,3, P A Orellana1
1Departamento de Física, Universidad Técnica Federico Santa María, Casilla 110, Valparaíso, Chile.
Abstract:
Whispering gallery resonators offer a versatile platform for manipulating the photonic transmission. Here, we study such a system, including periodically distributed pointlike impurities along the resonator with ring geometry. Based on an exact expression for the transmission probability we obtain here, we demonstrate that the bound states in the continuum (BICs) form from the whispering gallery modes at the high-symmetry momenta in the ring's Brillouin zone. Furthermore, the presence of the inversion symmetry allows for a selective decoupling of resonant states, favoring the BIC generation and, therefore, allowing extra tunability in the optical transmission of the system.
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