Articles with "photo acoustic" as a keyword



Optical measurement of gas vibrational-translational relaxation time with high accuracy by the laser photo-acoustic set-up

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Published in 2021 at "Microchemical Journal"

DOI: 10.1016/j.microc.2021.106040

Abstract: Abstract This study aimed to measure the vibrational-translational (V-T) relaxation time of gases using photo-acoustic technique with high accuracy. For this purpose, a cylindrical resonator and its acoustic filters were simulated and then fabricated. The… read more here.

Keywords: gas; time; photo acoustic; relaxation time ... See more keywords
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Nanoscale imaging of unusual photo-acoustic waves in thin flake VTe2.

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Published in 2020 at "Nano letters"

DOI: 10.1021/acs.nanolett.0c01006

Abstract: The control of acoustic phonons, which are the carriers of sound and heat, has become the focus of increasing attention because of a demand for manipulating the sonic and thermal properties of nanometric devices. In… read more here.

Keywords: imaging unusual; photo acoustic; photo; nanoscale imaging ... See more keywords
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Correlation of 360-degree Surface Mapping In Vivo Bioluminescence with Multi-Spectral Optoacoustic Tomography in Human Xenograft Tumor Models

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Published in 2018 at "Scientific Reports"

DOI: 10.1038/s41598-018-21668-4

Abstract: Pre-clinical monitoring of tumor growth and identification of distal metastasis requires a balance between accuracy and expediency. Bioluminescence imaging (BLI) is often used to track tumor growth but is primarily limited to planar 2-dimensional (2D)… read more here.

Keywords: surface mapping; photo acoustic; bli; bioluminescence ... See more keywords
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An inverse spectral analysis of transmission problem in thermo- and photo-acoustic tomography

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Published in 2019 at "Waves in Random and Complex Media"

DOI: 10.1080/17455030.2017.1422605

Abstract: ABSTRACT We study an inverse spectral theory in the thermo- and photo-acoustic tomography in imaging science. Under certain non-trapping hypothesis, we study the zero set of the Fourier transform of the observation data. The zero… read more here.

Keywords: acoustic tomography; photo acoustic; thermo photo; transmission problem ... See more keywords
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Photo-acoustic tomography based on laser optical feedback imaging of surface displacements.

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Published in 2019 at "Applied optics"

DOI: 10.1364/ao.58.007195

Abstract: We present how a laser optical feedback imaging (LOFI) setup can be used for the optical detection of ultrasound in photo-acoustic tomography (PAT). A PAT image is reconstructed by an inversion algorithm using surface displacement… read more here.

Keywords: surface; photo acoustic; acoustic tomography; laser optical ... See more keywords
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Multi-wavelength photo-acoustic microscopy in the frequency domain for simultaneous excitation and detection of dyes.

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Published in 2019 at "Biomedical optics express"

DOI: 10.1364/boe.10.000932

Abstract: An optical-resolution photoacoustic microscope with modulated CW laser diodes allowing multi-channel imaging is presented that can be used for both imaging biological tissues and for targeted photo-dynamic therapy (PDT) varying the optical power and exposure… read more here.

Keywords: microscopy; wavelength photo; photo acoustic; multi wavelength ... See more keywords