Human exhaled breath consists of more than 3000 volatile organic compounds, many of
which are relevant biomarkers for various diseases. Although gas chromatography has been …

Fiber gas sensing techniques have been applied for a wide range of industrial applications.
In this paper, the basic fiber gas sensing principles and the development of different fibers …

Laser-based gas sensors are undergoing constant and rapid development due to their
usability in numerous applications focused on eg monitoring of greenhouse gases …

We report a compact mid-infrared (MIR) photothermal spectroscopic ethane (C_2H_6)
sensor with a hollow-core negative-curvature-fiber (HC-NCF) gas cell. The HC-NCF …

In this work, we present for the first time a laser-based dual gas sensor utilizing a silica-
based Antiresonant Hollow-Core Fiber (ARHCF) operating in the Near-and Mid-Infrared …

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 …

Optical fibre sensing technology is a powerful method for long‐term reliable sensing in
harsh environments, which means it is particularly suitable for the detection of electrical …

For over a decade hollow-core fibers have been used in optical gas sensors in the role of
gas cells. However, very few examples of actual real-life applications of those sensors have …

The global trends of urbanization and industrialization have given rise to critical
environmental and air pollution issues that often receive insufficient attention. Among the …

In this paper we report a mid-infrared sensor based on an anti-resonant hollow core fiber. A
quantum cascade laser operating around 4.53 µm is used to target one of the strongest …