Sensitive, small, broadband and scalable optomechanical ultrasound sensor in silicon photonics
Sign Up to like & getrecommendations! Published in 2021 at "Nature Photonics"
DOI: 10.1038/s41566-021-00776-0
Abstract: Ultrasonography1 and photoacoustic2,3 (optoacoustic) tomography have recently seen great advances in hardware and algorithms. However, current high-end systems still use a matrix of piezoelectric sensor elements, and new applications require sensors with high sensitivity, broadband… read more here.
Keywords: photonics; ultrasound sensor; sensor; sensor silicon ... See more keywords
Modeling of Errors Due to Uncertainties in Ultrasound Sensor Locations in Photoacoustic Tomography
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Medical Imaging"
DOI: 10.1109/tmi.2020.2966297
Abstract: Photoacoustic tomography is an imaging modality based on the photoacoustic effect caused by the absorption of an externally introduced light pulse. In the inverse problem of photoacoustic tomography, the initial pressure generated through the photoacoustic… read more here.
Keywords: uncertainties ultrasound; photoacoustic tomography; tomography; sensor locations ... See more keywords
Photoacoustic computed tomography by using a multi-angle scanning fiber-laser ultrasound sensor.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.387675
Abstract: Photoacoustic computed tomography (PACT) can ultrasonically image optical absorbers in biological tissues by using a linear piezoelectric transducer array, but some features can not be visualized as a result of the limited acceptance angle. The… read more here.
Keywords: angle; computed tomography; photoacoustic computed; fiber laser ... See more keywords