We present a comprehensive overview of sensor technology exploiting optical whispering
gallery mode (WGM) resonances. After a short introduction we begin by detailing the …

Optical whispering-gallery mode (WGM) microresonators, confining resonant photons in a
microscale volume for long periods of time, strongly enhance light-matter interactions …

Biosensing relies on the detection of molecules and their specific interactions. It is therefore
highly desirable to develop transducers exhibiting ultimate detection limits. Microcavities are …

Detection of nanoscale objects is highly desirable in various fields such as early‐stage
disease diagnosis, environmental monitoring and homeland security. Optical microcavity …

Optical whispering‐gallery mode (WGM) microcavities featuring ultrahigh Q factors and
small mode volumes enhance significantly the interaction between light and matter …

Ultrasensitive nanoparticle detection holds great potential for early-stage diagnosis of
human diseases and for environmental monitoring. In this work, we report for the first time, to …

Label-free bio-sensing is a critical functionality underlying a variety of health-and security-
related applications. Micro-/nano-photonic devices are well suited for this purpose and have …

Optical whispering-gallery-mode resonators (WGMRs) have emerged as promising
platforms for label-free detection of nano-objects. The ultimate sensitivity of WGMRs is …

The experimental realization of a Kerr frequency comb represented the convergence of
research in materials, physics, and engineering. This symbiotic relationship continues to …

Whispering gallery mode (WGM) resonators have attracted extensive attention and their
unique characteristics have led to some remarkable achievements. In particular, when …