Fiber-Laser-Based Ultrasound Sensor for Photoacoustic Imaging
Advanced fiber laser techniques have been developed for optical communication, sensing, measurement, defense and industrial applications. Optical fibers with lengths from millimeters to
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This paper focuses on fiber optic ultrasound transmitters which utilize photoacoustic principle on optical fibers to generate ultrasound.
Advanced fiber laser techniques have been developed for optical communication, sensing, measurement, defense and industrial applications. Optical fibers with lengths from millimeters to
Thus, a fibre-optic ultrasound sensor is obtained that is readily fabricated and exhibits excellent sensitivity. In addition, the heterodyne LDV employed in this work offers absolute velocity
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Ultrasound is a valuable tool for the detection of damage in structures and the characterization of material properties. Its detection is conventionally done by piezoelectric transducers, however fiber
This requires highly miniaturised and flexible devices. Here we present optical ultrasound transmitters for imaging applications based on modified optical fibre distal tips which allow for larger
In this paper, we present a new photoacoustic sensor based on a small-sized fiber laser. Incident ultrasound waves exert pressures on the optical fiber laser and
A fiber optic with six transducers is used to generate ultrasound, and another fiber optic cable with six FBGs is employed for ultrasound detection. The transducers and FBGs are mounted
The fiber optic ultrasound generation element is based on the photoacoustic principle, which is the formation of sound waves following light absorption in a material sample.
Abstract An ultrasonic probe consisting of two optical fiber-based miniaturized transducers for wideband ultrasound emission and detection is employed for the characterization of in vitro
The fiber optic ultrasound generator is based on the photoacoustic
A miniaturized ultrasound sensor based on optical fiber is designed and realized for multichannel parallel ultrasound detection and photoacoustic imaging. The fiber optic sensor is composed of a polymer
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In this paper, the history of optical ultrasound transmitters based on photoacoustic principle is reviewed and the efficiency of the photoacoustic conversion is discussed. This paper
Most advanced applications require novel ultrasonic transmitters, where fiber optic technique has been proved to be a great candidate due to its compact dimension, high frequency, and highly...
The small size, high sensitivity, and immunity to electromagnetic interference of fibre-optic ultrasound sensors make them highly attractive for applications in biomedical imaging and metrology.
Abstract Guided waves (GW) and acoustic emission (AE) -based structural health monitoring (SHM) have widespread applications in structures, as the monitoring
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Optical fiber-based sensors offer numerous advantages such as being lightweight, small, the ability to be embedded, immunity to electro-magnetic
Here, we demonstrate a novel approach based on side-viewing ultrasonic transceiver fabricated in single-mode optical fiber. The transceiver consists of a tilted fiber Bragg grating (TFBG) whose
The authors embed a micro-resonator in a 10 µm core fiber, which enables ultrasound wave detection with large bandwidth and small aperture.
Fiber-optic ultrasound transmitters can be used in structural health monitoring, material characterization, and biomedical imaging. However, the bandwidth of current fiberoptic ultrasound
Optical fiber-based sensors offer several advantages, such as their low weight, small size, ability to be embedded, and immunity to electro-magnetic
Abstract This paper presents several designs of high-sensitivity, compact fiber-optic ultrasound sensors that may be used for medical imaging applications. These sensors translate ultrasonic pulses into
In this paper, we propose and demonstrate a fiber-optic ultrasound sensing technique using a polarization-maintaining fiber loop mirror (PMF-LM) to
Modern fiber-optic communication systems generally include optical transmitters that convert electrical signals into optical signals, optical fiber cables to carry the
An easy-to-understand introduction to fiber optics (fibre optics), the different kinds of fiber optic cables, and how light travels down them.
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