Dual-comb photoacoustic spectroscopy [PDF]
Nature Communications, 2020 Spectrally resolved photoacoustic images often require the acquisition of data for each wavelength separately. Here, the authors use dual frequency-comb spectroscopy for photoacoustic measurements, enabling spectrally resolved measurements without the ...
Jacob T. Friedlein +13 more
doaj +3 more sources
High performance filtering and high-sensitivity concentration retrieval of methane in photoacoustic spectroscopy utilizing deep learning residual networks [PDF]
PhotoacousticsA novel method is introduced to improve the detection performance of photoacoustic spectroscopy for trace gas detection. For effectively suppressing various types of noise, this method integrates photoacoustic spectroscopy with residual networks model ...
Yanan Cao +7 more
doaj +2 more sources
Cantilever-enhanced dual-comb photoacoustic spectroscopy [PDF]
PhotoacousticsDual-comb photoacoustic spectroscopy (DC-PAS) advances spectral measurements by offering high-sensitivity and compact size in a wavelength-independent manner.
Jiapeng Wang +8 more
doaj +2 more sources
Lithium Niobate – Enhanced Photoacoustic Spectroscopy [PDF]
PhotoacousticsIn this work, we report on the novel employment of lithium niobate tuning forks as acoustic transducers in photoacoustic spectroscopy for gas sensing. The lithium niobate tuning fork (LiNTF) exhibits a fundamental resonance frequency of 39196.6 Hz and a ...
Aldo F.P. Cantatore +7 more
doaj +2 more sources
Online Detection of Hydrogen Fluoride under Corona Discharge in Gas-Insulated Switchgear Based on Photoacoustic Spectroscopy [PDF]
SensorsInternal discharge and overheating faults in sulfur hexafluoride (SF6) gas-insulated electrical equipment will generate a series of characteristic gas products.
Liujie Wan, Xiaohe Zhao, Kang Li
doaj +2 more sources
Quartz-enhanced multiheterodyne resonant photoacoustic spectroscopy [PDF]
Light: Science & ApplicationsThe extension of dual-comb spectroscopy (DCS) to all wavelengths of light along with its ability to provide ultra-large dynamic range and ultra-high spectral resolution, renders it extremely useful for a diverse array of applications in physics ...
Jiapeng Wang +6 more
doaj +2 more sources
Non-Invasive Monitoring of Human Health by Photoacoustic Spectroscopy
Sensors, 2022 For certain diseases, the continuous long-term monitoring of the physiological condition is crucial. Therefore, non-invasive monitoring methods have attracted widespread attention in health care.
Yongyong Jin +4 more
doaj +1 more source
Integrated, Selective, Simultaneous Multigas Sensing Based on Nondispersive Infrared Spectroscopy-Type Photoacoustic Spectroscopy. [PDF]
ACS Sens, 2023 Rodriguez Gutierrez G +2 more
europepmc +2 more sources
Initial results of in vivo non-invasive cancer imaging in the human breast using near-infrared photoacoustics [PDF]
, 2007 Near-infrared photoacoustic images of regions-of-interest in 4 of the 5 cases of patients with symptomatic breasts reveal higher intensity regions which we attribute to vascular distribution associated with cancer.
Engh, Frank M. van den +6 more
core +13 more sources
Mass-specific optical absorption coefficients and imaginary part of the complex refractive indices of mineral dust components measured by a multi-wavelength photoacoustic spectrometer [PDF]
Atmospheric Measurement Techniques, 2015 Mass-specific optical absorption coefficients (MACs) and the imaginary part (κ) of the refractive indices of various mineral dust components including silicate clays (illite, kaolin and bentonite), oxides (quartz, hematite and rutile), and ...
N. Utry +6 more
doaj +1 more source