Zobrazeno 1 - 10
of 313
pro vyhledávání: '"K, Passler"'
Publikováno v:
SPIE Proceedings.
The method proposed in this work combines the advantages of optical detection (optical and acoustical transparency) with 2D slice imaging, using an optical interferometer combined with an acoustic reflector. The concave reflector has the shape of an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5afe908b19953c31621afe70a487a117
https://doi.org/10.1117/12.908252
https://doi.org/10.1117/12.908252
Autor:
K. Passler, Hubert Gruen, Peter Burgholzer, Sibylle Gratt, Guenther Paltauf, Bernhard Reitinger, Robert Nuster
Publikováno v:
Optics letters. 36(6)
An optical detection setup consisting of a focused laser beam fed into a downstream Fabry–Perot interferometer (FPI) for demodulation of acoustically generated optical phase variations is investigated for its applicability in photoacoustic tomograp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d51966e1a484c9c221dbdcde0be0296a
https://pubmed.ncbi.nlm.nih.gov/21403749
https://pubmed.ncbi.nlm.nih.gov/21403749
Publikováno v:
Scopus-Elsevier
A piezoelectric detection system consisting of concentric rings is investigated for large depth of field photoacoustic imaging. Compared to a single ring, the array with its dynamic focusing capability leads to a reduction of imaging artifacts. Image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::364bf2f55488546611ab063db3e1a8e1
https://doi.org/10.1364/ecbo.2011.809012
https://doi.org/10.1364/ecbo.2011.809012
Publikováno v:
Biomedical Optics Express
A dual mode scanning acoustic microscope is investigated, yielding simultaneously images with optical and acoustical contrast. Short laser pulses are used to excite acoustic waves in a sample for the photoacoustic imaging mode. At the same time the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::80d02b2e93ada8aaa9850d856abeefdd
https://pubmed.ncbi.nlm.nih.gov/21258469
https://pubmed.ncbi.nlm.nih.gov/21258469
Publikováno v:
Scopus-Elsevier
This work is engaged in the investigation of a cylindrical shaped piezoelectric detector for photoacoustic imaging. This detector gives a plane detection area. Simulations and experiments with such a detector are shown and discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d01fb03924351ad5acd37471b655981
https://doi.org/10.1364/biomed.2010.jma51
https://doi.org/10.1364/biomed.2010.jma51
Publikováno v:
SPIE Proceedings.
Photoacoustic imaging with a scanning, fixed focus receiver gives images with high resolution, without the need for image reconstruction. For achieving high depth of field, a conically shaped piezoelectric ultrasound detector, the so called axicon-de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9ace93c62a9ae4f668cdfbc118c9c1c
https://doi.org/10.1117/12.831728
https://doi.org/10.1117/12.831728
Autor:
Hubert Grün, K. Passler, Th. Berer, Günther Paltauf, Sibylle Gratt, Robert Nuster, Peter Burgholzer
Publikováno v:
Scopus-Elsevier
Currently two different types of integrating line sensors are used in photoacoustic tomography (PAT). Thin film piezoelectric polymer sensors (PVDF) are characterized by compactness, easy handling and the possibility to manufacture sensing areas with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0ea47f738580babbc49bc1ec2756de3
https://doi.org/10.1117/12.808873
https://doi.org/10.1117/12.808873
Publikováno v:
SPIE Proceedings.
Photoacoustic imaging with a scanning, fixed focus receiver gives images with high resolution, without the need for reconstruction algorithms. However, the usually employed spherical ultrasound lenses have a limited focal depth that decreases with in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b70cfa4b595f6c5bf2a104baa5d8a887
https://doi.org/10.1117/12.808217
https://doi.org/10.1117/12.808217
Publikováno v:
SPIE Proceedings.
Photoacoustic tomography (PAT) with line detectors is based on line integrals of the acoustic pressure field generated by a photoacoustic source. From these line integrals, which are measured around the source, a two-dimensional (2D) projection image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a58a8089228a07947d3dbad5ee9a203f
https://doi.org/10.1117/12.763161
https://doi.org/10.1117/12.763161