Whispering gallery mode (WGM) microresonators, thanks to their unique properties, have
allowed researchers to achieve important results in both fundamental research and …

Confinement of light into small volumes has become an essential requirement for photonic
devices; examples of this trend are provided by optical fibers, integrated optical circuits …

Glass microsphere resonators that support optical resonances known as whispering‐gallery
modes are unique tools for studying and exploiting optical effects under extremely well …

The unique benefits of Fabry–Pérot resonators as frequency-stable reference cavities and
as an efficient interface between atoms and photons make them an indispensable resource …

The unavailability of highly transparent materials in the mid-infrared has been the main
limitation in the development of ultra-sensitive molecular sensors or cavity-based …

We demonstrate a monolithic optical whispering-gallery-mode resonator fabricated with
barium fluoride (BaF_2) with an ultra-high quality (Q) factor above 10^ 9 at 1550 nm, and …

Unlike capillary resonance by Rayleigh (Proc. R. Soc. London29, 71 (1879) PRSLAZ0370-
166210.1098/rspl. 1879.0015) and optical resonance by Ashkin (Phys. Rev. Lett. 38, 1351 …

Ultrahigh-quality (Q) factor microresonators have a lot of applications in the photonics
domain ranging from low-threshold nonlinear optics to integrated optical sensors. Glass …

Highly sensitive sensing is one of the most important applications of whispering-gallery-
mode (WGM) microresonators, which is usually accomplished through a tunable continuous …

We review our recent work on tunable, ultra-high quality factor whispering-gallery-mode
bottle microresonators and highlight their applications in non-linear optics and in quantum …