High-contrast fast Fourier transform acousto-optical tomography of phantom tissues with a frequency-chirp modulation of the ultrasound
We report new results on acousto-optical tomography in phantom tissues using a frequency chirp modulation and a CCD camera. This technique allows quick recording of three-dimensional images of the optical contrast with a two-dimensional scan of the ultrasound source in a plane perpendicular to the u...
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| Veröffentlicht in: | Applied Optics 2003-03, Vol.42 (7), p.1379-1383 |
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| container_end_page | 1383 |
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| container_issue | 7 |
| container_start_page | 1379 |
| container_title | Applied Optics |
| container_volume | 42 |
| creator | Forget, Benoît-Claude Ramaz, François Atlan, Michaël Selb, Juliette Boccara, Albert-Claude |
| description | We report new results on acousto-optical tomography in phantom tissues using a frequency chirp modulation and a CCD camera. This technique allows quick recording of three-dimensional images of the optical contrast with a two-dimensional scan of the ultrasound source in a plane perpendicular to the ultrasonic path. The entire optical contrast along the ultrasonic path is concurrently obtained from the capture of a film sequence at a rate of 200 Hz. This technique reduces the acquisition time, and it enhances the axial resolution and thus the contrast, which are usually poor owing to the large volume of interaction of the ultrasound perturbation. |
| doi_str_mv | 10.1364/AO.42.001379 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1559-128X |
| ispartof | Applied Optics, 2003-03, Vol.42 (7), p.1379-1383 |
| issn | 1559-128X 0003-6935 1539-4522 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_73099541 |
| source | MEDLINE; Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | Fourier Analysis Optics and Photonics Phantoms, Imaging Tomography - methods Ultrasonics |
| title | High-contrast fast Fourier transform acousto-optical tomography of phantom tissues with a frequency-chirp modulation of the ultrasound |
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