ArticlePhotoacoustics2024
High-sensitivity trace gas detection based on differential Helmholtz photoacoustic cell with dense spot pattern.
Article in Photoacoustics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Photoacoustic spectroscopy detection based on complementary interdigital cantilever enhanced Fabry-Perot acoustic sensor.Photoacoustics · 2025Article
- A multi-pass differential photoacoustic spectrometer at 1064 nm for ambient aerosol absorption.Photoacoustics · 2025Article
- PMUT enhanced light-induced thermoelastic spectroscopy.Photoacoustics · 2025Article
- Conductance-photoacoustic spectroscopy for fast and concurrent sensing of hydrogen and hydrocarbons.Photoacoustics · 2025Article
- Three-dimensional optical path extended gourd-type photoacoustic cell for highly sensitive trace acetylene sensing.Photoacoustics · 2025Article
- Enhancing photoacoustic trace gas detection via a CNN-transformer denoising framework.Photoacoustics · 2025Article
- Gas concentration prediction in photoacoustic spectroscopy using PSO-EAP-CNN to address correlation degradation.Photoacoustics · 2025Article
- Optical synchronous signal demodulation-based quartz-enhanced photoacoustic spectroscopy for remote, multi-point methane detection in complex environments.Photoacoustics · 2025Article
- Parts-per-quadrillion level gas molecule detection: CO-LITES sensing.Light, science & applications · 2025Article
- Multivariate-coupled-enhanced photoacoustic spectroscopy with Chebyshev rational fractional-order filtering algorithm for trace CHPhotoacoustics · 2025Article
- Multi-gas photoacoustic sensor using multi-mode demodulation.Photoacoustics · 2025Article
- A high sensitive methane QEPAS sensor based on self-designed trapezoidal-head quartz tuning fork and high power diode laser.Photoacoustics · 2025Article
- Highly sensitive HPhotoacoustics · 2025Article
- A Highly Sensitive Light-Induced Thermoelastic Spectroscopy Sensor Using a Charge Amplifier to Improve the Signal-to-Noise Ratio.Sensors (Basel, Switzerland) · 2025Article
- Multiple optical path length reflections enhancement based on balloon-type photoacoustic cell for trace gas sensing.Photoacoustics · 2025Article
- Improved T-shaped quartz tuning fork with isosceles-trapezoidal grooves optimized for quartz-enhanced photoacoustic spectroscopy.Photoacoustics · 2025Article
- A Highly Sensitive TDLAS-Based Water Vapor Isotopes Sensor Using a Quantum Cascade Laser.Sensors (Basel, Switzerland) · 2025Article
- Highly Sensitive T-Shaped Quartz Tuning Fork Based CHSensors (Basel, Switzerland) · 2024Article
- Highly sensitive and miniaturized microcone-curved resonant photoacoustic cavity for trace gas detection.Photoacoustics · 2024Article
- High performance filtering and high-sensitivity concentration retrieval of methane in photoacoustic spectroscopy utilizing deep learning residual networks.Photoacoustics · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A high-sensitivity photoacoustic spectroscopy (PAS) sensor based on differential Helmholtz photoacoustic cell (DHPAC) with dense spot pattern is reported in this paper for the first time. A multi-pass cell based on two concave mirrors was designed to achieve a dense spot pattern, which realized 212 times excitation of incident laser. A finite element analysis was utilized to simulate the sound field distribution and frequency response of the designed DHPAC. An erbium-doped fiber amplifier (EDFA) was employed to amplify the output optical power of the laser to achieve strong excitation. In order to assess the designed sensor's performance, an acetylene (C
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