Originally developed for diagnostic ultrasound imaging, piezoelectric transducers are the
most widespread technology employed in optoacoustic (photoacoustic) signal detection …

Photoacoustic tomography (PAT), also known as optoacoustic tomography, is an attractive
imaging modality that provides optical contrast with acoustic resolutions. Recent progress in …

Ultrasound sensors have been widely used in medical imaging, as well as structural health
monitoring (SHM) and non-destructive testing (NDT) in civil and mechanical structures …

Using a novel range-resolved interferometric signal processing technique based on the
sinusoidal optical frequency modulation of a cost-effective laser diode, a fiber sensing …

An ultra-compact ultrasound sensor with a chalcogenide (ChG) microfiber and a silica
microfiber is fabricated. It can detect the ultrasound wave generated by a piezoelectric …

In optical detection of ultrasound, resonators with high Q-factors are often used to maximize
sensitivity. However, in order to perform parallel interrogation, conventional interferometric …

We propose and demonstrate a multi-point, self-adaptive fiber ultrasonic sensor based on
fiber Bragg gratings (FBGs). The sensor is constructed from matched FBG pairs (FBGPs) and …

With recent advances in optical technology, interferometric sensing has grown into a highly
versatile approach for ultrasound detection, with many interferometric detectors relying on …

Coherence-restored pulse interferometry (CRPI) is a recently developed method for optical
detection of ultrasound that achieves shot-noise-limited sensitivity and high dynamic range …

We present a free-space, continuous-wave laser interferometric system capable of multi-
target dynamic phase measurement at acoustic frequencies up to a Nyquist bandwidth of …