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

In the era of the Internet of Things, sensors are pivotal for a smart and interconnected future.
Gas sensors, particularly those based on carbon nanotubes (CNTs), emerge as essential …

The physical and chemical aspects of plasma–surface interaction in high-power impulse
magnetron sputtering (HiPIMS) discharges are overviewed. The data obtained by various …

We present a fiber-optic photoacoustic (PA) sensor for remote monitoring of gas micro-
leakage. The gas sensing head is a miniature ferrule-top PA cavity with a cantilever beam …

Laser absorption spectroscopy as a powerful tool for detecting trace gases has been widely
used in the monitoring of atmospheric greenhouse gases, pollutions, and respiration …

Methane (CH 4) is primarily used as a fuel for heating and electricity generation throughout
the world. Despite its advantages such as high calorific value and low toxicity after …

Methane is one of the indicative gases in power transformer oil, and the detection of
methane dissolved in oil with high accuracy is of great importance for dissolved gases …

In recent years, design and synthesis of heterostructured nanomaterials with high gas-
sensing performance for detection of flammable and toxic gases has attracted much …

A near-infrared (NIR) methane (CH 4) detection system based on tunable diode laser
absorption spectroscopy (TDLAS) was experimentally demonstrated, which adopts a …

Accurate measurement of oxygen concentration for pharmaceutical glass bottles is of great
significance to ensure the asepsis of medicine and stability of ingredients. With merits of …