The photoacoustic effect is an emerging technology that has sparked significant interest in
the research field since an acoustic wave can be produced simply by the incidence of light …

This study presents a framework for detecting mechanical damage in pipelines, focusing on
generating simulated data and sampling to emulate distributed acoustic sensing (DAS) …

MEMS acoustic sensors are a type of physical quantity sensor based on MEMS
manufacturing technology for detecting sound waves. They utilize various sensitive …

A fiber-optic hydrophone based on extrinsic Fabry–Perot (FP) interferometer is proposed.
The sensitive element of the hydrophone is an Archimedes spiral metal diaphragm, and the …

An acoustic sensor based on balloon-shaped microfiber Mach-Zehnder Interferometer
(BSMZI) is proposed and demonstrated. The BSMZI is constructed by bending a tapered …

Photoacoustic spectroscopy (PAS) has been rapidly developed and applied to different
detection scenarios. The acoustic pressure detection is an important part in the PAS system …

We present a novel micro-fabrication technique for creating concave surfaces on the
endfacets of photonic crystal fibers. A fiber fusion splicer is used to generate arc discharges …

Sensors based on optical interferometric displacement measurement have the outstanding
advantage of high sensitivity and are widely applied in various measurement fields. In …

An ultrahigh-sensitivity fiber-tip cavity ultrasonic sensor based on optomechanical effect
fabricated by Two-photon Polymerization (TPP) Technology is presented. The microcavity is …

The rigid Fabry-Pérot (FP) cavity has emerged as the preferred core sensing component for
optical pressure, vibration, and acoustic sensing in harsh environments, owing to its high …