ArticlePhotoacoustics2024
Open-closed single-tube on-beam tuning-fork-enhanced fiber-optic photoacoustic spectroscopy.
Article in Photoacoustics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Heterodyne photoacoustic gas sensing with real-time resonance tracking in high-Photoacoustics · 2026Article
- A Review on Photoacoustic Spectroscopy Techniques for Gas Sensing.Sensors (Basel, Switzerland) · 2024Review
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Authors and funding
4 authors.
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Abstract
A proof-of-concept on-beam tuning-fork-enhanced photoacoustic sensor based on an open-closed single-tube acoustic-microresonator (AmR) was proposed and investigated for the first time, to the best of our knowledge. Due to the high acoustic amplification effect, the open-closed AmR improved the detection sensitivity by 54 times with respect to the bare tuning fork (TF). Compared to traditional dual-tube/single-tube on-beam spectrophone configuration, the developed approach significantly facilitates the laser beam alignment and reduces the sensor size and gas consumption. A 6.6 kHz low-frequency custom aluminum alloy TF was employed as the acoustic transducer to detect the photoacoustic signal. The vibration of TF was measured by a fiber-optic Fabry-Pérot (FP) interferometer (FPI). The modulation depth, tube length and laser power were experimentally optimized and evaluated in detail. An acetylene (C
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