Author

Guo-Xiong Wu

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Open access Oct 2026

Tuning fork-cantilever coupled dual-resonance fiber-optic photoacoustic sensor for simultaneous dual-gas detection

We report a fiber-optic tuning-fork–cantilever coupled photoacoustic (TFCC-PA) sensor for the simultaneous detection of methane (CH 4 ) and acetylene (C 2 H 2 ). The sensor integrates a custom square-head 6063 aluminum-alloy tuning fork (ATF) and a laser-cut polyethylene terephthalate cantilever within a s...

Yu-Chen Guan, Guo-Xiong Wu, Xian-Feng Xie et al. · Optics Letters · 0 citations

Aug 2026

Ultrasensitive Single-Fiber Fabry–Pérot Photoacoustic Acetylene Sensor Enabled by a T-Type Acoustic Resonator

Single-fiber photoacoustic spectroscopy is attractive for compact, remote, and intrinsically safe trace-gas sensing, but its sensitivity is limited by the short absorption length and weak photoacoustic excitation in a miniaturized sensing head. Here, we propose and demonstrate an ultrasensitive single-fiber Fabry–Pé...

Guo-Xiong Wu, Yu-Chen Guan, Linsong Zhang et al. · Analytical Chemistry · 1 citation