Ultrahigh Purcell Factor, Improved Sensitivity, and Enhanced Optical Force in Dielectric Bowtie Whispering-Gallery-Mode Resonators
We propose and theoretically investigate an all-dielectric bowtie whisperinggallery-mode (WGM) resonator which consists of two tip-to-tip coupled semiconductor nanorings with triangular cross section separated by low refractive index material gap.Mode splitting of symmetric WGM and antisymmetric WGM is observed and analyzed.Due to extremely field e