Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Wollweber, M."'
We present a simple electromechanical finite difference model to study the response of a piezoelectric polyvinylidenflourid (PVDF) transducer to optoacoustic (OA) pressure waves in the acoustic nearfield prior to thermal relaxation of the OA source v
Externí odkaz:
http://arxiv.org/abs/1703.05054
We present numerical simulations for modelling optoacoustic (OA) signals observed in PVA hydrogel tissue phantoms. We review the computational approach to model the underlying mechanisms, i.e. optical absorption of laser energy and acoustic propagati
Externí odkaz:
http://arxiv.org/abs/1702.07603
We discuss efficient algorithms for the accurate forward and reverse evaluation of the discrete Fourier-Bessel transform (dFBT) as numerical tools to assist in the 2D polar convolution of two radially symmetric functions, relevant, e.g., to applicati
Externí odkaz:
http://arxiv.org/abs/1611.02202
In this letter we address the numeric inversion of optoacoustic signals to initial stress profiles. Therefore we put under scrutiny the optoacoustic kernel reconstruction problem in the paraxial approximation of the underlying wave-equation. We apply
Externí odkaz:
http://arxiv.org/abs/1606.09487
Publikováno v:
Phys. Rev. E 96, 033308 (2017)
The direct problem of optoacoustic signal generation in biological media consists of solving the inhomogeneous optoacoustic wave equation for an initial acoustic stress profile. In contrast, the mathematically challenging inverse problem requires the
Externí odkaz:
http://arxiv.org/abs/1606.04740
In this article we characterize optoacoustic signals generated from layered tissue phantoms via short laser pulses by experimental and numerical means. In particular, we consider the case where scattering is effectively negligible and the absorbed en
Externí odkaz:
http://arxiv.org/abs/1605.05657
Publikováno v:
In Photoacoustics March 2019 13:1-5
Publikováno v:
In Procedia Technology 2016 26:524-529
Autor:
Bremer, K., Meinhardt-Wollweber, M., Thiel, T., Werner, G., Sun, T., Grattan, K.T.V., Roth, B.
Publikováno v:
In Sensors & Actuators: A. Physical 1 December 2014 220:62-68
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