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

In the past few years optical ring resonators have emerged as a new sensing technology for
highly sensitive detection of analytes in liquid or gas. This article introduces the ring …

Compact and smart optical gas sensors have attracted significant attention over the past few
decades. Among the materials used for developing such gas sensors, group-IV materials …

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

High sensitivity (S) and high quality factor (Q) are desirable to achieve low detection limit in
label-free optical sensors. In this paper, we theoretically demonstrate that single-layer and …

Optical structures fabricated on silicon-on-insulator technology provide a convenient
platform for the implementation of highly compact, versatile and low cost devices. In this …

The sensing capability of the capillary-based optofluidic ring resonator in bulk refractive
index (RI) detection and label-free small molecule detection is investigated. In bulk RI …

Sensitive and rapid label-free biological and chemical sensors are needed for a wide variety
of applications including early disease diagnosis and prognosis, the monitoring of food and …

We report an in-reflection photonic crystal fiber (PCF) interferometer which exhibits high
sensitivity to different volatile organic compounds (VOCs), without the need of any …

The further development of “lab on fiber” technology demands more powerful optical
microsystems and optical fibers with special functions to create sensors with better …