Enhancement of photoacoustic detection of inhomogeneities in polymers
We report a series of experiments on laser pulsed photoacoustic excitationin turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves by eng...
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2013
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/178348 |
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I19-R120-10915-178348 |
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I19-R120-10915-1783482025-04-22T20:28:29Z http://sedici.unlp.edu.ar/handle/10915/178348 Enhancement of photoacoustic detection of inhomogeneities in polymers Grondona, P. Di Rocco, Héctor Oscar Iriarte, D. Pomarico, Juan A. Ranea Sandoval, Héctor Francisco Bilmes, Gabriel Mario 2013-07-05 2025-04-22T18:19:35Z en Física laser applications pulsed photoacoustics polymer phantoms We report a series of experiments on laser pulsed photoacoustic excitationin turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves by engraving the surface of the piece under study with a fiduciary pattern of black lines..We also describe how this pattern helps to enhance the sensitivity for the detection of an inhomogeneity in the bulk. These two facts are useful for studies in soft matter systems including, perhaps, biological samples. We have performed an experimental analysis on Grilon® samples in different situations and we show the limitations of the method. Laboratorio de Ablación Láser, Fotónica e Imágenes 3D Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física laser applications pulsed photoacoustics polymer phantoms |
| spellingShingle |
Física laser applications pulsed photoacoustics polymer phantoms Grondona, P. Di Rocco, Héctor Oscar Iriarte, D. Pomarico, Juan A. Ranea Sandoval, Héctor Francisco Bilmes, Gabriel Mario Enhancement of photoacoustic detection of inhomogeneities in polymers |
| topic_facet |
Física laser applications pulsed photoacoustics polymer phantoms |
| description |
We report a series of experiments on laser pulsed photoacoustic excitationin turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves by engraving the surface of the piece under study with a fiduciary pattern of black lines..We also describe how this pattern helps to enhance the sensitivity for the detection of an inhomogeneity in the bulk. These two facts are useful for studies in soft matter systems including, perhaps, biological samples. We have performed an experimental analysis on Grilon® samples in different situations and we show the limitations of the method. |
| format |
Articulo Articulo |
| author |
Grondona, P. Di Rocco, Héctor Oscar Iriarte, D. Pomarico, Juan A. Ranea Sandoval, Héctor Francisco Bilmes, Gabriel Mario |
| author_facet |
Grondona, P. Di Rocco, Héctor Oscar Iriarte, D. Pomarico, Juan A. Ranea Sandoval, Héctor Francisco Bilmes, Gabriel Mario |
| author_sort |
Grondona, P. |
| title |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_short |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_full |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_fullStr |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_full_unstemmed |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_sort |
enhancement of photoacoustic detection of inhomogeneities in polymers |
| publishDate |
2013 |
| url |
http://sedici.unlp.edu.ar/handle/10915/178348 |
| work_keys_str_mv |
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| _version_ |
1855354183297794048 |