[HTML][HTML] Characterization of H2S QEPAS detection in methane-based gas leaks dispersed into environment
The increase in fatal accidents and chronic illnesses caused by hydrogen sulfide (H 2 S)
exposure occurring in various workplaces is pushing the development of sensing systems …
exposure occurring in various workplaces is pushing the development of sensing systems …
[HTML][HTML] Parts-per-billion-level detection of hydrogen sulfide based on doubly resonant photoacoustic spectroscopy with line-locking
We report on the development of a highly sensitive hydrogen sulfide (H 2 S) gas sensor
exploiting the doubly resonant photoacoustic spectroscopy technique and using a near …
exploiting the doubly resonant photoacoustic spectroscopy technique and using a near …
[HTML][HTML] H2S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode
In this work, we report on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor
for hydrogen sulfide (H 2 S) detection, exploiting a liquid-nitrogen-cooled THz quantum …
for hydrogen sulfide (H 2 S) detection, exploiting a liquid-nitrogen-cooled THz quantum …
Research on mid-infrared external cavity quantum cascade lasers and applications
Y Ma, K Ding, L Wei, X Li, J Shi, Z Li, Y Qu, L Li, Z Qiao… - Crystals, 2022 - mdpi.com
In this paper, we review the progress of the development and application of external cavity
quantum cascade lasers (ECQCLs). We concentrated on ECQCLs based on the wide …
quantum cascade lasers (ECQCLs). We concentrated on ECQCLs based on the wide …
Multi-pass cell-assisted photoacoustic/photothermal spectroscopy of gases using quantum cascade laser excitation and heterodyne interferometric signal detection
A heterodyne interferometer-based signal retrieval in photoacoustic/photothermal gas
spectrometer using mid-infrared quantum cascade laser excitation is demonstrated. This …
spectrometer using mid-infrared quantum cascade laser excitation is demonstrated. This …
High-precision laser spectroscopy of H 2 S for simultaneous probing of multiple-sulfur isotopes
J Chaillot, S Dasari, H Fleurbaey, M Daeron… - Environmental …, 2023 - pubs.rsc.org
The simultaneous monitoring of the triple stable S-isotopes (32S, 33S and 34S) of hydrogen
sulfide has been conducted with a VCOF-CRDS set-up (a V-shaped cavity for optical …
sulfide has been conducted with a VCOF-CRDS set-up (a V-shaped cavity for optical …
A fitting method of unlabeled interference for spectra based on multi-stage cross optimization
When constructing a spectral detection model for a substance, it will be very difficult to
ensure the accuracy of the model if there is an unlabeled interference in the spectrum. To …
ensure the accuracy of the model if there is an unlabeled interference in the spectrum. To …
Simultaneous monitoring of 32 S, 33 S and 34 S isotopes of H 2 S using cavity ring-down spectroscopy with a mid-infrared external-cavity quantum cascade laser
The simultaneous monitoring of three stable isotopes of hydrogen sulphide (H2S), ie H232S,
H233S, and H234S, within a single laser scan of 0.4 cm− 1 has been achieved by means of …
H233S, and H234S, within a single laser scan of 0.4 cm− 1 has been achieved by means of …
Photoacoustic-based sensor for real-time monitoring of methane and nitrous oxide in composting
KMSM Baiense, FG Linhares, CT Inácio… - Sensors and Actuators B …, 2021 - Elsevier
The emission of greenhouse gases from disturbed biological systems has caused damage
to the environment. Thus, sensitive, efficient and accurate techniques have been required to …
to the environment. Thus, sensitive, efficient and accurate techniques have been required to …
Nondispersive ultraviolet monitoring of pulsed H2S gas delivery
B Kalanyan, EP Jahrman, JE Maslar - Journal of Vacuum Science & …, 2024 - pubs.aip.org
This article describes time-resolved optical measurements of H 2 S partial pressure and
mass flow in a pulsed gas delivery system approximating injection conditions encountered …
mass flow in a pulsed gas delivery system approximating injection conditions encountered …