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 …

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

Optical microcavities that confine light in high-Q resonance promise all of the capabilities
required for a successful next-generation microsystem biodetection technology. Label-free …

Whispering gallery mode (WGM) optical microresonators have attracted intense interests in
the past decades. The combination of high quality factors (Q) and small mode volumes of …

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 …

Single-molecule detection is one of the fundamental challenges of modern biology. Such
experiments often use labels that can be expensive, difficult to produce, and for small …

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

Nanophotonic device building blocks, such as optical nano/microcavities and plasmonic
nanostructures, lie at the forefront of sensing and spectrometry of trace biological and …

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