Surface Crack Detection with Low-cost Photoacoustic Imaging System
International Journal of Technology, 2018 Photoacoustic measurement in an imaging system is a unique method as it uses optical disturbance but observes its effect acoustically. Acoustical observation increases the quality of a measurement by reducing the scattering effect that often occurs in ...
Andreas Setiawan +3 more
doaj +1 more source
Application of the Photoacoustic Approach in the Characterization of Nanostructured Materials
Nanomaterials, 2022 A new generation of sensors can be engineered based on the sensing of several markers to satisfy the conditions of the multimodal detection principle. From this point of view, photoacoustic-based sensing approaches are essential. The photoacoustic effect
Mykola Isaiev +7 more
doaj +1 more source
Photoacoustic Effect in Solids
Physical Review Letters, 1979 A quantitative derivation is presented for the production of the acoustic signal in a photoacoustic cell, taking into account the finite surface thermal resistance of the solid.
C. L. Cesar +3 more
openaire +2 more sources
Approximate k-space models and Deep Learning for fast photoacoustic reconstruction [PDF]
, 2018 We present a framework for accelerated iterative reconstructions using a fast and approximate forward model that is based on k-space methods for photoacoustic tomography. The approximate model introduces aliasing artefacts in the gradient information for
Arridge, Simon +6 more
core +2 more sources
Cylindrical illumination with angular coupling for whole-prostate photoacoustic tomography [PDF]
, 2019 Current diagnosis of prostate cancer relies on histological analysis of tissue samples acquired by biopsy, which could benefit from real-time identification of suspicious lesions.
Bungart, Brittani +9 more
core +1 more source
Frontiers in Bioengineering and Biotechnology, 2023 Translatable imaging agents are a crucial element of successful molecular imaging. Photoacoustic molecular imaging relies on optical absorbing materials to generate a sufficient signal.
Shensheng Zhao +11 more
doaj +1 more source
Thermal diffusivity of periderm from tomatoes of different maturity stages as determined by the concept of the frequency-domain open photoacoustic cell [PDF]
, 2011 The frequency-domain open photoacoustic cell (OPC) approach was used to determine room temperature thermal diffusivity of skins (pericarps) from the raw tomatoes (Lycopersicon esculetum Mill.) characterized by the three different stages of ripeness (from
Baesso Mauro, L. +6 more
core +2 more sources
Simulation model for the evaluation and design of miniaturized non-resonant photoacoustic gas sensors [PDF]
Journal of Sensors and Sensor Systems, 2016 This publication reports the derivation and the implementation of a simulation model that describes non-resonant photoacoustic gas sensors. The photoacoustic effect is modelled in detail for the successive steps of radiation emission, stimulation of ...
J. Huber, K. Schmitt, J. Wöllenstein
doaj +1 more source
Accelerated High-Resolution Photoacoustic Tomography via Compressed Sensing [PDF]
, 2016 Current 3D photoacoustic tomography (PAT) systems offer either high image quality or high frame rates but are not able to deliver high spatial and temporal resolution simultaneously, which limits their ability to image dynamic processes in living tissue.
Arridge, Simon +7 more
core +2 more sources
Mitigation of artifacts due to isolated acoustic heterogeneities in photoacoustic computed tomography using a variable data truncation-based reconstruction method [PDF]
, 2017 Photoacoustic computed tomography (PACT) is an emerging computed imaging modality that exploits optical contrast and ultrasonic detection principles to form images of the absorbed optical energy density within tissue.
Anastasio, Mark A. +4 more
core +2 more sources