Results 21 to 30 of about 1,122,400 (226)
Slow-sound photoacoustic microscopy [PDF]
Applied Physics Letters, 2013 We propose to enhance the axial resolution of photoacoustic microscopy (PAM) by reducing the speed of sound within the imaging region of interest. With silicone oil immersion, we have achieved a finest axial resolution of 5.8 μm for PAM, as validated by phantom experiments.
Zhang, Chi +3 more
openaire +6 more sources
Maximum fluence for accurate functional photoacoustic microscopy [PDF]
PhotoacousticsPhotoacoustic microscopy (PAM) can map blood oxygen saturation (sO2) in the brain and other organs at high spatial and temporal resolution, enabling many preclinical and clinical applications.
Jingyi Zhu, Zhiwei Yao, Lidai Wang
doaj +2 more sources
Two octaves spanning photoacoustic microscopy [PDF]
Scientific Reports, 2022 In this study, for the first time, a Photoacoustic Microscopy instrument driven by a single optical source operating over a wide spectral range (475–2400 nm), covering slightly more than two octaves is demonstrated. Xenopus laevis tadpoles were imaged in
Gianni Nteroli +9 more
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Special issue introduction: Photoacoustic microscopy
Photoacoustics, 2016 First proposed in the 1970s for non-destructive testing, the modern reincarnation of photoacoustic microscopy (PAM) has major impact in bio-medicine, spanning a wide range of applications from flow cytometry and cancer research to ophthalmology, neuroimaging and cardiovascular diagnostics.
Hao F. Zhang
doaj +4 more sources
Grueneisen Relaxation Photoacoustic Microscopy [PDF]
Physical Review Letters, 2014 The temperature-dependent property of the Grueneisen parameter has been employed in photoacoustic imaging mainly to measure tissue temperature. Here we explore this property using a different approach and develop Grueneisen relaxation photoacoustic microscopy (GR-PAM), a technique that images nonradiative absorption with confocal optical resolution. GR-
Wang, Lidai, Zhang, Chi, Wang, Lihong V.
openaire +5 more sources
Label-free photoacoustic microscopy of cytochromes [PDF]
Journal of Biomedical Optics, 2013 Photoacoustic microscopy (PAM) has achieved submicron lateral resolution in showing subcellular structures; however, relatively few endogenous subcellular contrasts have so far been imaged. Given that the hemeprotein, mostly cytochromes in general cells, is optically absorbing around the Soret peak (~420 nm), we implemented label-free PAM of ...
Tingting Yu, Lihong Wang, Younan Xia
exaly +5 more sources
Photoacoustic microscopy with meta-optics
Communications PhysicsRecent advances in the miniaturization of optical elements have led to the emergence of imaging systems used for industrial and consumer-based applications.
Dorian S. H. Brandmüller +5 more
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High speed innovations in photoacoustic microscopy [PDF]
npj ImagingPhotoacoustic microscopy (PAM) is a key implementation of photoacoustic imaging (PAI). PAM merges rich optical contrast with deep acoustic detection, allowing for broad biomedical research and diverse clinical applications.
Xiaoyi Zhu +3 more
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3-D Visualization of Atlantic salmon skin through Ultrasound and Photoacoustic Microscopy. [PDF]
PLoS Computational BiologySignificanceThree-dimensional photoacoustic imaging (PAM) has emerged as a promising technique for non-invasive label-free visualization and characterization of biological tissues with high spatial resolution and functional contrast.AimThe application of
Abhishek Ranjan +3 more
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Spectral-distortion-suppressed deep learning for fiber sensor photoacoustic microscopy [PDF]
PhotoacousticsFiber laser sensors offer significant advantages for photoacoustic microscopy (PAM), including compact size, electromagnetic immunity, and suitability for fast scanning systems.
Liying Zhu +6 more
doaj +2 more sources