[HTML][HTML] Laser sensors for energy systems and process industries: Perspectives and directions
Sensors are perhaps the most important and integral components of our modern society.
With global warming and environmental pollution garnering ever-increasing attention, as …
With global warming and environmental pollution garnering ever-increasing attention, as …
Techniques to enhance the photoacoustic signal for trace gas sensing: A review
Photoacoustic spectroscopy (PAS), which relies on the detection of absorption-induced
acoustic waves, is widely used for gas sensing. This paper summarizes and discusses most …
acoustic waves, is widely used for gas sensing. This paper summarizes and discusses most …
[HTML][HTML] Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range
Photoacoustic spectroscopy (PAS) based gas sensors with high sensitivity, wide dynamic
range, low cost, and small footprint are desirable in energy, environment, safety, and public …
range, low cost, and small footprint are desirable in energy, environment, safety, and public …
[HTML][HTML] Ppb-level detection of methane based on an optimized T-type photoacoustic cell and a NIR diode laser
This paper presents an optimized T-type resonant photoacoustic (PA) cell for methane (CH
4) gas detection. The noise transmission coefficients and PA field distributions of the T-type …
4) gas detection. The noise transmission coefficients and PA field distributions of the T-type …
Cavity-enhanced photoacoustic dual-comb spectroscopy
Photoacoustic dual-comb spectroscopy (DCS), converting spectral information in the optical
frequency domain to the audio frequency domain via multi-heterodyne beating, enables …
frequency domain to the audio frequency domain via multi-heterodyne beating, enables …
Cavity ring-down spectroscopy: recent technological advancements, techniques, and applications
A Maity, S Maithani, M Pradhan - Analytical chemistry, 2020 - ACS Publications
Cavity ring-down spectroscopy (CRDS), first pioneered in 1988 by O'Keefe and Deacon, 1
has evolved into a newgeneration, precision spectroscopy in recent years and subsequently …
has evolved into a newgeneration, precision spectroscopy in recent years and subsequently …
High-sensitivity multitrace gas simultaneous detection based on an all-optical miniaturized photoacoustic sensor
G Wu, Z Gong, H Li, J Ma, K Chen, W Peng… - Analytical …, 2022 - ACS Publications
We propose an all-optical miniaturized multigas simultaneous detection photoacoustic (PA)
sensor, which is primarily composed of a copper tube, a silica cantilever, and four single …
sensor, which is primarily composed of a copper tube, a silica cantilever, and four single …
[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 …
A high-sensitivity compact dual-T-type resonant fiber-optic photoacoustic sensor for simultaneous detection of multiple gases
M Zhang, G Wu, Z Gong, J Xing, X Wang… - Sensors and Actuators B …, 2024 - Elsevier
We propose a high-sensitivity compact dual-T-type resonant fiber-optic photoacoustic (DTR-
FOPA) sensor for simultaneous detection of two gases. The designed DTR-FOPA sensor …
FOPA) sensor for simultaneous detection of two gases. The designed DTR-FOPA sensor …
[HTML][HTML] High-sensitivity miniature dual-resonance photoacoustic sensor based on silicon cantilever beam for trace gas sensing
We report a miniature dual-resonance photoacoustic (PA) sensor, mainly consisting of a
small resonant T-type PA cell and an integrated sensor probe based on a silicon cantilever …
small resonant T-type PA cell and an integrated sensor probe based on a silicon cantilever …