Hollow-core anti-resonant optical fiber (HC-ARF) provides solutions for breaking the
bottlenecks in areas of high-power transmission and high-efficiency optical waveguide …

Volatile organic compounds (VOCs), as a primary pollutant in industrial-contaminated sites
or polluted soils, cause severe damage to the soil. Therefore, a comprehensive …

We demonstrate for the first time the measurement of CO2 isotope ratios (13C/12C and
18O/16O) in a hollow waveguide (HWG) fiber using a mid-infrared heterodyne phase …

In this paper, we experimentally asses the performance of wavelength modulation
spectroscopy-based spectrometers incorporating 1.3 m-long gas absorption cells formed by …

SF 6 gas is a greenhouse gas that is harmful to the atmospheric environment and is widely
used in gas-insulated power equipment. In this paper, a new SF 6 gas detection system …

Photoacoustic spectroscopy (PAS)-based gas sensing system is popular in industries due to
advantages of high sensitivity and portable. However, data fluctuation often occurs in the on …

Heterodyne phase-sensitive dispersion spectroscopy (HPSDS) is a quantitative non-
intrusive gas sensing technique based on the determination of the refractive index of the …

Using anti-resonant hollow-core fibers instead of light guide arms for laser energy
transmission can greatly improve the flexibility of medical laser devices, reduce system …

Ethane is the second largest component among natural gas, and the detection of ethane is
an effective method for rapid identification of the leakage of the natural gas pipelines. In this …

In this paper, dual-band gas detection using a combination of the light-induced
thermoelastic spectroscopy (LITES) and an antiresonant hollow-core fiber-based (ARHCF) …