Results 41 to 50 of about 10,844 (210)
Handheld Photoacoustic Microscopy Probe [PDF]
Scientific Reports, 2017 AbstractOptical resolution photoacoustic microscopy (OR-PAM) is a non-invasive, label-free method of in vivo imaging with microscopic resolution and high optical contrast. Based on intrinsic contrasts, OR-PAM has expanded to include in vivo vessel imaging, flow cytometry, physiological parameter analysis, and single-cell characterization.
Kyungjin Park +5 more
openaire +3 more sources
Dichroism optical-resolution photoacoustic microscopy [PDF]
, 2012 We have developed dichroism optical-resolution photoacoustic microscopy, capable of imaging polarization-dependent optical absorption (i.e., dichroism) with excellent specificity.
Wang, L. V. +15 more
core +1 more source
Recent advances in high-speed photoacoustic microscopy
Photoacoustics, 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
Endoscopic photoacoustic microscopy [PDF]
SPIE Proceedings, 2009 ABSTRACT We present a concept and system implementation for endoscopic photoacoustic microscopy that enables minimally invasive diagnosis of internal organs. The system incorporates an in-house made single element ultrasonic transducer for photoacoustic signal detection and an optical fiber for light delivery into a tubular probe with a mechanical ...
Yang, Joon-Mo +4 more
openaire +2 more sources
In vivo spatial-spectral photoacoustic microscopy enabled by optical evanescent wave sensing
Medicine 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
Photoacoustic shadow-casting microscopy
Optics Letters, 2019 We present photoacoustic shadow-casting microscopy (PASM), a technique that allows high-resolution imaging of weakly absorbing biological samples with unprecedented sensitivity. In PASM, a uniform optical absorbing layer is placed in contact with the samples and is excited by the light transmitted through the sample, producing photoacoustic (PA) waves ...
Jorge Tordera, Mora +2 more
openaire +2 more sources
Progress of clinical translation of handheld and semi-handheld photoacoustic imaging
Photoacoustics, 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
Pure optical photoacoustic microscopy
Optics Express, 2011 The concept of pure optical photoacoustic microscopy(POPAM) was proposed based on optical rastering of a focused excitation beam and optically sensing the photoacoustic signal using a microring resonator fabricated by a nanoimprinting technique.
Xie, Zhixing +5 more
openaire +2 more sources
Minimally invasive photoacoustic imaging: Current status and future perspectives
Photoacoustics, 2019 Photoacoustic imaging (PAI) is an emerging biomedical imaging modality that is based on optical absorption contrast, capable of revealing distinct spectroscopic signatures of tissue at high spatial resolution and large imaging depths.
Tianrui Zhao +4 more
doaj +1 more source
Photoacoustic imaging with fiber optic technology: A review
Photoacoustics, 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