The term whispering gallery mode (WGM) was first introduced to describe the curvilinear
propagation of sound waves under a cathedral dome. The physical concept has now been …

Dielectrics represent a new frontier for surface-enhanced Raman scattering. They can serve
as either a complement or an alternative to conventional, metal-based SERS, offering key …

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

Detecting target analytes with high specificity and sensitivity in any fluid is of fundamental
importance to analytical science and technology. Surface-enhanced Raman scattering …

This Review covers photonic crystals (PhCs) and their use for sensing mainly chemical and
biochemical parameters, with a particular focus on the materials applied. Specific sections …

Localized surface plasmon resonance (LSPR) is a longstudied nanoscale phenomenon of
considerable recent interest. 1, 2 These resonances, associated with noble metal …

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

Optofluidics—the synergistic integration of photonics and microfluidics—is a new analytical
field that provides a number of unique characteristics for enhancing the sensing …

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 …

The ability to detect and size individual nanoparticles with high resolution is crucial to
understanding the behaviour of single particles and effectively using their strong size …