Results 41 to 50 of about 20,149 (224)

Recent advances in high-speed photoacoustic microscopy

open access: yesPhotoacoustics, 2021
Photoacoustic (PA) microscopy (PAM) has achieved remarkable progress in biomedicine in the past decade. It is a fast-rising imaging modality with diverse applications, such as hemodynamics, oncology, metabolism, and neuroimaging.
Kaiyue Wang   +3 more
doaj   +1 more source

In vivo spatial-spectral photoacoustic microscopy enabled by optical evanescent wave sensing

open access: yesMedicine in Novel Technology and Devices, 2023
In addition to offering morphological visualizations via capture of the spatial distributions of optical absorption, photoacoustic imaging technology can reveal abundant physical information about biological particles, including their orientation ...
Fan Yang   +7 more
doaj   +1 more source

Surface Acoustic Waves in Thin Films Nanometrology [PDF]

open access: yes, 2015
Thin films nanometrology is an emerging field in nanoscience as the synthesis, processing and applications of nanostructured thin films require an in-depth knowledge of their elastic constants. The elastic energy of a surface acoustic wave propagating in
BETTUCCI, Andrea
core   +1 more source

Progress of clinical translation of handheld and semi-handheld photoacoustic imaging

open access: yesPhotoacoustics, 2021
Photoacoustic imaging (PAI), featuring rich contrast, high spatial/temporal resolution and deep penetration, is one of the fastest-growing biomedical imaging technology over the last decade.
Qian Chen, Wei Qin, Weizhi Qi, Lei Xi
doaj   +1 more source

Functional photoacoustic microscopy of pH [PDF]

open access: yesSPIE Proceedings, 2011
pH is a tightly regulated indicator of metabolic activity. In mammalian systems, an imbalance of pH regulation may result from or result in serious illness. In this paper, we report photoacoustic microscopy (PAM) of a commercially available pH-sensitive fluorescent dye (SNARF-5F carboxylic acid) in tissue phantoms.
Chatni, Muhammad Rameez   +5 more
openaire   +5 more sources

Overcoming the acoustic diffraction limit in photoacoustic imaging by localization of flowing absorbers

open access: yes, 2017
The resolution of photoacoustic imaging deep inside scattering media is limited by the acoustic diffraction limit. In this work, taking inspiration from super-resolution imaging techniques developed to beat the optical diffraction limit, we demonstrate ...
Arnal, Bastien   +2 more
core   +3 more sources

Dual-Polarized Fiber Laser Sensor for Photoacoustic Microscopy

open access: yesSensors, 2019
Optical resolution photoacoustic microscopy (OR-PAM) provides high-resolution, label-free and non-invasive functional imaging for broad biomedical applications.
Xiangwei Lin   +3 more
doaj   +1 more source

Photoacoustic imaging with fiber optic technology: A review

open access: yesPhotoacoustics, 2020
Photoacoustic imaging (PAI) has achieved remarkable growth in the past few decades since it takes advantage of both optical and ultrasound (US) imaging. In order to better promote the wide clinical applications of PAI, many miniaturized and portable PAI ...
Jingcheng Zhou, Jesse V. Jokerst
doaj   +1 more source

Optical-resolution photoacoustic imaging through thick tissue with a thin capillary as a dual optical-in acoustic-out waveguide

open access: yes, 2015
We demonstrate the ability to guide high-frequency photoacoustic waves through thick tissue with a water-filled silica-capillary (150 \mu m inner diameter and 30 mm long).
Bossy, Emmanuel   +6 more
core   +1 more source

Influence of the absorber dimensions on wavefront shaping based on volumetric optoacoustic feedback [PDF]

open access: yes, 2015
The recently demonstrated control over light distribution through turbid media based on real-time three-dimensional optoacoustic feedback has offered promising prospects to interferometrically focus light within scattering objects.
Dean-Ben, X. L.   +3 more
core   +1 more source

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