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 …

Leveraging the outstanding nonlinear optical properties and the ultra‐high spatial
confinement of light, microresonators based on lithium niobate (LN) thin films have emerged …

Optical microcavities with ultralong photon storage times are of central importance for
integrated nanophotonics. To date, record quality (Q) factors up to 10 11 have been …

A tunable Raman laser in the hollow bottle-like microresonator is demonstrated. By
controlling the pump laser frequency, we have demonstrated continuous Raman laser …

Whispering gallery mode (WGM) microresonators, benefitting from the ultrahigh quality (Q)
factors and small mode volumes, could considerably enhance the light-matter interaction …

It is shown that, in multimode Raman lasers, cascaded light scattering (CLS) not only
extends the optical frequency range, but can also modulate the laser dynamics. The origin of …

Opto-thermal relaxation is one of the most important properties of nonlinear optical
materials. Rapid and high precision measurement of this parameter is vital in both …

Rare-earth-doped on-chip microlasers are of great significance in both fundamental
research and engineering. To the best of our knowledge, this is the first report of Yb^ 3+ …

We report a novel, to the best of our knowledge, way to achieve phase-controlled dual-
wavelength resonance based on whispering-gallery-mode (WGM) microcavities …

The precise measurement of gain lifetime at a specific wavelength holds significant
importance for understanding the properties of photonic devices and further improving their …