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
doaj +1 more source
Multi-scale molecular photoacoustic tomography of gene expression.
PLoS ONE, 2012 Photoacoustic tomography (PAT) is a molecular imaging technology. Unlike conventional reporter gene imaging, which is usually based on fluorescence, photoacoustic reporter gene imaging relies only on optical absorption. This work demonstrates several key
Xin Cai +8 more
doaj +1 more source
Quickly Alternating Green and Red Laser Source for Real-time Multispectral Photoacoustic Microscopy
Photoacoustics, 2020 Multispectral photoacoustic microscopy uses a wavelength-dependent absorption difference as a contrast mechanism to image the target molecule. In this paper, we present a novel multispectral pulsed fiber laser source, which selectively alternates the ...
Sang Min Park +6 more
doaj +1 more source
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
Three-dimensional reconstructing undersampled photoacoustic microscopy images using deep learning
Photoacoustics, 2022 Spatial sampling density and data size are important determinants of the imaging speed of photoacoustic microscopy (PAM). Therefore, undersampling methods that reduce the number of scanning points are typically adopted to enhance the imaging speed of PAM
Daewoon Seong +6 more
semanticscholar +1 more source
Flexible depth-of-focus, depth-invariant resolution photoacoustic microscopy with Airy beam
Advanced Photonics Nexus. Optical-resolution photoacoustic microscopy (OR-PAM) has rapidly developed and is capable of characterizing optical absorption properties of biological tissue with high contrast and high resolution (micrometer-scale lateral resolution).
Wangting Zhou +7 more
semanticscholar +1 more source
Deep learning alignment of bidirectional raster scanning in high speed photoacoustic microscopy
Scientific Reports, 2022 Simultaneous point-by-point raster scanning of optical and acoustic beams has been widely adapted to high-speed photoacoustic microscopy (PAM) using a water-immersible microelectromechanical system or galvanometer scanner.
Jongbeom Kim +8 more
semanticscholar +1 more source
Continuous-wave photoacoustic microscopy [PDF]
SPIE Proceedings, 2007 We have built a photoacoustic microscope (PAM) using an amplitude-modulated continuous-wave (CW) laser source, which is an inexpensive 120-mW laser diode. By using a bowl-shaped piezoelectric transducer, whose numerical aperture is 0.85 and resonance frequency is 2.45 MHz, we have experimentally demonstrated a lateral resolution of 600 mm, an axial ...
Maslov, Konstantin, Wang, Lihong V.
openaire +2 more sources
Single Element-Based Dual Focused Photoacoustic Microscopy
Photonics, 2015 We present a single element-based dual focused photoacoustic microscopy (PAM) that shows improved signal-to-noise ratio and lateral resolution compared to conventional single focused PAM in the out-of-focus region.
Jianbo Tang, Huabei Jiang
doaj +1 more source
Quantitative Photoacoustic Imaging in the Acoustic Regime using SPIM
, 2017 While in standard photoacoustic imaging the propagation of sound waves is modeled by the standard wave equation, our approach is based on a generalized wave equation with variable sound speed and material density, respectively.
Beigl, Alexander +3 more
core +1 more source