High-and ultrahigh-Q whispering-gallery mode resonators have the capability to trap
photons by total internal reflection for a duration ranging from nanoseconds to milliseconds …

Integrated photonics provides a powerful approach for developing compact, stable, and
scalable architectures for the generation, manipulation, and detection of quantum states of …

Optical whispering gallery modes (WGMs) derive their name from a famous acoustic
phenomenon of guiding a wave by a curved boundary observed nearly a century ago. This …

The crystal symmetry in materials such as GaAs can enable quasi-phasematching for
efficient optical frequency conversion without poling, twinning or other engineered domain …

We review the progress in the development of frequency converters based on three‐wave
mixing in whispering gallery resonators (WGRs). The theoretical description, given in a …

We derive general conditions for 100% frequency conversion in any doubly resonant
nonlinear cavity, for both second-and third-harmonic generation via Χ?^(2) and Χ^(3) …

Focus Serial: Frontiers of Nonlinear Optics Nonlinear photonic-crystal microresonators offer
unique fundamental ways of enhancing a variety of nonlinear optical processes. This …

In this contribution, we demonstrate the first integrated gallium arsenide (GaAs) ring
resonator for second harmonic generation (SHG) on a GaAs-on-insulator platform. Such …

We present a simple method to determine simultaneously the main characteristics of passive
or active high-Q optical resonators. The method is based on cavity ringdown spectroscopy …

High quality factor whispering-gallery-mode microresonators are ideally suited for nonlinear
optical interactions. We analyze, experimentally and theoretically, a variety of χ (3) nonlinear …