Modern quantum technology currently experiences extensive advances in applicability in
communications, cryptography, computing, metrology and lithography. Harnessing this …

We report on the design, fabrication, and characterization of mass-producible, sensitive,
intensity-detection-based planar waveguide sensors for rapid refractive index (RI) sensing; …

In this work, we review the most important achievements of an INESC TEC long-period-
grating-based fiber optic Michelson and Mach–Zehnder configuration modal interferometer …

Optical biosensing systems are commonly developed assembling a source, a light–sample
interaction area, and a detector as distinct stand-alone elements. We present a compact …

Silicon photonic sensors have formed a favorable platform for various sensing applications
due to the great advantages of high-performance, compactness, and large-scale integration …

We propose and develop an intensity-detection-based refractive-index (RI) sensor for low-
cost, rapid RI sensing. The sensor is composed of a polymer bent ridge waveguide (BRWG) …

Integrated biochemical sensors based on Mach-Zehnder interferometers (MZIs) rely on the
evanescent field detection principle to monitor the phase shift induced by a refractive index …

An effective bio-sensing platform that would meet the criteria of rapid, simple, and sensitive
detection is crucial to translate bench research to clinical applications. However …

It is found that the nonlinear dispersion of optical materials can induce the interference fringe
of phase-compensated wavefront splitting Mach–Zehnder interferometer (MZI) to split at a …

Optical polymers can easily be functionalized as versatile waveguide materials for chemical
sensing. The ultimate endeavour of material innovation is to utilize a new material to …