Výsledky vyhledávání - "Max Lesaffre"

Two-step distortion-free reconstruction scheme for holographic microscopy

Autor: Frédéric Verpillat, Fadwa Joud, Michel Gross, Max Lesaffre, Nicolas Verrier

Publikováno v: OSA Technical Digest
in Digital Holography and Three-Dimensional Imaging
Digital Holography and Three-Dimensional Imaging
Digital Holography and Three-Dimensional Imaging, Apr 2013, Kohala Coast, Hawaii, France. pp.DW1A.7, ⟨10.1364/DH.2013.DW1A.7⟩

International audience; 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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72117843061ee8be43a2181b77c52888
http://arxiv.org/abs/1307.1211

Zobrazit plný text záznamu

Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light

Autor: François Ramaz, Michel Gross, Max Lesaffre, Salma Farahi

Publikováno v: Applied optics
Applied optics, Optical Society of America, 2013, 52 (5), pp.949-957. ⟨10.1364/AO.52.000949⟩
Applied optics, 2013, 52 (5), pp.949-957. ⟨10.1364/AO.52.000949⟩

International audience; 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 presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4586f901e3bfc36dd845fbb5e4de14a1
https://pubmed.ncbi.nlm.nih.gov/23400056

Zobrazit plný text záznamu

Phase-sensitive narrowband heterodyne holography

Autor: Nicolas Verrier, Michael Atlan, Jean-Baptiste Laudereau, François Bruno, Max Lesaffre

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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ec2d2d70221faadeb816e35c0aa4e17
https://hal.archives-ouvertes.fr/hal-00782727

Zobrazit plný text záznamu

Signal and Noise scaling factors in digital holography under weak illumination conditions: relationship with shot-noise

Autor: Max Lesaffre, Michel Gross, Nicolas Verrier, Michael Atlan

Publikováno v: Digital Holography and Three-Dimensional Imaging.

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: https://explore.openaire.eu/search/publication?articleId=doi_________::83dc0225626f58fbb2fc6be827a2e5f8
https://doi.org/10.1364/dh.2013.dw2a.16

Zobrazit plný text záznamu

(DH) Noise and Signal scaling factors in Digital Holography in week illumination: relationship with Shot Noise

Autor: Max Lesaffre, Michel Gross, Nicolas Verrier

Publikováno v: Applied optics
Applied optics, Optical Society of America, 2013, 52 (1), pp.A81--A91. ⟨10.1364/AO.52.000A81⟩
Applied optics, 2013, 52 (1), pp.A81--A91. ⟨10.1364/AO.52.000A81⟩

International audience; 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 recon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8712e3d3c33c73e04c8c248447220c3b

Zobrazit plný text záznamu

Theoretical study of acousto-optical coherence tomography using random phase jumps on ultrasound and light

Autor: A. C. Boccara, Salma Farahi, Michel Gross, Max Lesaffre, François Ramaz

Publikováno v: Journal of the Optical Society of America. A Optics, Image Science, and Vision
Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2011, 28 (7), pp.1436--1444. ⟨10.1364/JOSAA.28.001436⟩
Journal of the Optical Society of America. A Optics, Image Science, and Vision, 2011, 28 (7), pp.1436--1444. ⟨10.1364/JOSAA.28.001436⟩

Acousto-optical coherence tomography (AOCT) is a variant of acousto-optic imaging (also called ultrasonic modulation imaging) that makes it possible to get the z resolution with acoustic and optic continuous wave beams. We describe here theoretically

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b411cabef9300644fef0d5209dbf7712
https://pubmed.ncbi.nlm.nih.gov/21734743

Zobrazit plný text záznamu

Detection of the tagged or untagged photons in acousto-optic imaging of thick highly scattering media by photorefractive adaptive holography

Autor: François Ramaz, Albert-Claude Boccara, Max Lesaffre, Philippe Delaye, G. Roosen, Michel Gross

Publikováno v: European Physical Journal E: Soft matter and biological physics
European Physical Journal E: Soft matter and biological physics, 2009, 28, pp.173-182. ⟨10.1140/epje/i2008-10408-2⟩
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2009, 28, pp.173-182. ⟨10.1140/epje/i2008-10408-2⟩

International audience; 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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54a67cab9af756b1ca9d773ac305a7dc
https://hal.science/hal-00339348

Zobrazit plný text záznamu

Effect of the Photon's Brownian Doppler Shift on the Weak-Localization Coherent-Backscattering Cone

Autor: Michael Atlan, Michel Gross, Max Lesaffre

Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2006, 97 (3), pp.033901. ⟨10.1103/PhysRevLett.97.033901⟩
Physical Review Letters, 2006, 97 (3), pp.033901. ⟨10.1103/PhysRevLett.97.033901⟩

International audience; 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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9385102531eeb84a88e931ba8b605ef5

Zobrazit plný text záznamu

Sub-millisecond in situ measurement of the photorefractive response in a self adaptive wavefront holography setup developped for acousto-optic imaging

Autor: Max Lesaffre, Antoine Bordes, Francois Ramaz, A. C. Boccara, Philippe Delaye, F. Jean, Emmanuel Bossy, Gérald Roosen, Michel Gross

Publikováno v: SPIE Proceedings.

Interferometric measurements for in-vivo imaging of biological tissues are strongly sensitive to the related speckle decorrelation time tc, whose effect is to reduce the contrast of the speckle pattern at the exit of the sample and thus blur detectio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::311ffbcdcee9236ce084fccc8b00927e
https://doi.org/10.1117/12.641669

Zobrazit plný text záznamu

Holographic image acquisition and rendering for laser doppler angiography

Autor: Max Lesaffre, Benjamin Samson, Michael Atlan, Nicolas Verrier

Publikováno v: Scopus-Elsevier

A brief review of acquisition and rendering methods of optically-acquired holograms in frequency-shifting and off-axis conditions is presented. Applications to laser Doppler imaging in angiography are reported, as well as our latest technical develop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1495cd8cc24d13eac377f92fcd5481c
http://www.scopus.com/inward/record.url?eid=2-s2.0-84890703963&partnerID=MN8TOARS

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání