Presently, numerous state-of-the-art approaches are being adapted for gas sensing and
monitoring. These include hazardous gas leak detection as well as ambient air monitoring …

Background Increasing consumer demands for more information about the food we eat, in
combination with a greater incidence of sophisticated food fraud cases, has resulted in the …

As a natural monitor of health conditions for human beings, volatile organic compounds
(VOCs) act as significant biomarkers for healthcare monitoring and early stage diagnosis of …

Optical spectroscopy has a broad scientific basis in chemistry, physics, and material science,
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …

A small-volume highly-sensitive photoacoustic spectroscopy (PAS) methane detection
system based on differential silicon cantilever optical microphones (SCOMs) is proposed …

Remote chemical detection in the atmosphere or some specific space has always been of
great interest in many applications for environmental protection and safety. Laser absorption …

A silicon cantilever-enhanced photoacoustic spectroscopy (PAS)-based trace gas analyzer
with low gas consumption is presented. A silicon cantilever-based fiber-optic Fabry–Perot (F …

Mid‐infrared materials antireflection is in high demand for high‐powered or ultra‐broadband
coherent light sources, where conventional antireflection coatings cannot be reliably …

The mid-infrared (MIR) spectral region attracts attention for accurate chemical analysis using
photonic devices. Few-layer graphene (FLG) polytypes are promising platforms, due to their …

Isopropyl alcohol molecules, as a biomarker for anti-virus diagnosis, play a significant role in
the area of environmental safety and healthcare relating volatile organic compounds …