Whispering gallery modes

Anomalous blue-shift of terahertz whispering-gallery modes via dielectric and metallic tuning

The vast majority of resonant systems show a red-shift for the resonance frequency when a perturbation, e.g., losses, is introduced to the system. In contrast, here we report for the first time, to the best of our knowledge, the experimental …

Microwave whispering-gallery resonator for efficient optical up-conversion

Conversion of microwave radiation into the optical range has been predicted to reach unity quantum efficiency in whispering-gallery resonators made from an optically nonlinear crystal and supporting microwave and optical modes simultaneously. In this …