Photonics offers the flexibility of multiplexing streams of data not only spatially and in time, but also in frequency or, equivalently, in wavelength, which makes it highly suitable for parallel ...

Researchers in Japan have developed an optimized hydrogen gas measurement using TDLAS technique. It is reportedly able to achieve a detection range of hydrogen gas concentration of 0.01% to 100%. The ...

Researchers from Chiba University have developed a novel calibration-free approach that substantially improves the accuracy ...

The laser's wavelength is modulated or oscillated around the target absorption line of the gas at a specific frequency to ...

Hydrogen, a promising fuel, has extensive applications in many sectors. However, its safe and widespread use necessitates reliable sensing methods. While tunable diode laser absorption spectroscopy ...

Hydrogen gas is a promising energy source with several advantages—it is lightweight, storable, energy-dense, and ...

Abstract: This study introduces a novel approach for gas concentration and temperature mapping utilizing wavelength modulation spectrometry with a single diode laser. Our method integrates camera ...