Zobrazeno 1 - 10
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pro vyhledávání: '"Lesaffre, Max"'
Autor:
Lesaffre, Max
Imager un milieu diffusant épais par voie optique interdit l'utilisation des techniques d'imagerie optique conventionnelles du fait de la faiblesse du signal balistique. L'imagerie acousto-optique de la lumière diffusée permet d'obtenir une imager
Externí odkaz:
http://pastel.archives-ouvertes.fr/pastel-00556664
http://pastel.archives-ouvertes.fr/docs/00/55/66/64/PDF/Max_Lesaffre_-_aprA_s.pdf
http://pastel.archives-ouvertes.fr/docs/00/55/66/64/PDF/Max_Lesaffre_-_aprA_s.pdf
Publikováno v:
Digital Holography and Three-Dimensional Imaging, Kohala Coast, Hawaii : France (2013)
We propose a three-dimensional holographic reconstruction procedure applicable with no a priori knowledge about the recording conditions enabling distortion-free three-dimensional object reconstruction.
Externí odkaz:
http://arxiv.org/abs/1307.1211
Publikováno v:
Digital Holography and Three-Dimensional Imaging, Kohala Coast, Hawaii : \'Etats-Unis (2013)
An experimental study on how reconstructed image signal and noise scale with acquisition and reconstruction parameters is proposed. Monte-carlo simulation is performed to emphasize that the measured noise is shot-noise.
Externí odkaz:
http://arxiv.org/abs/1307.1210
Publikováno v:
Appl. Optics 52, 5 (2013) 949-957
Acousto-Optical Coherence Tomography (AOCT) is a variant of Acousto Optic Imaging (also called Ultrasound modulated Optical Tomography) that makes possible to get resolution along the ultrasound propagation axis $z$. We present here new AOCT experime
Externí odkaz:
http://arxiv.org/abs/1302.1343
We report on amplitude and phase imaging of out-of-plane sinusoidal surface vibration at nanometer scales with a heterodyne holographic interferometer. The originality of the proposed method is to make use of a multiplexed local oscillator to address
Externí odkaz:
http://arxiv.org/abs/1301.7532
Publikováno v:
Applied Optics 52, 1 (2013) A1--A11
We have performed off axis heterodyne holography with very weak illumination by recording holograms of the object with and without object illumination in the same acquisition run. We have experimentally studied, how the reconstructed image signal (wi
Externí odkaz:
http://arxiv.org/abs/1210.3944
Publikováno v:
Journal of the Optical Society of America A 28, 7 (2011) 1436--1444
Acousto-Optical Coherence Tomography (AOCT) is variant of Acousto Optic Imaging (called also ultrasonic modulation imaging) that makes possible to get z resolution with acoustic and optic Continuous Wave (CW) beams. We describe here theoretically the
Externí odkaz:
http://arxiv.org/abs/1106.4890
Autor:
Gross, Michel, Lesaffre, Max Max, Ramaz, François, Delaye, Philippe, Roosen, Gérald, Boccara, Claude
Publikováno v:
European Physical Journal E (2008) 173-182
We propose an original adaptive wavefront holographic setup based on the photorefractive effect (PR), to make real-time measurements of acousto-optic signals in thick scattering media, with a high flux collection at high rates for breast tumor detect
Externí odkaz:
http://arxiv.org/abs/0811.2734
Publikováno v:
Physical Review Letters 97, 3 (2006) 033901
We report the first observation of the dependence of the coherent-backscattering (CBS) enhanced cone with the frequency of the backscattered photon. The experiment is performed on a diffusing liquid suspension and the Doppler broadening of light is i
Externí odkaz:
http://arxiv.org/abs/0804.2129
Autor:
Lesaffre, Max
Publikováno v:
Optique [physics.optics]. Université Pierre et Marie Curie-Paris VI, 2009. Français
Using conventionnal optical imaging techniques does not allow to image a thick scattering medium because of the weakness of the ballistic transmitted photons. Acousto-optical imaging of the scattered light enables to get images of the local optical a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______212::1fef7801b0e3ac4e87f01d739dc77bfa
https://pastel.archives-ouvertes.fr/pastel-00556664/document
https://pastel.archives-ouvertes.fr/pastel-00556664/document