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Caractérisation d'impulsions brèves. Mise en forme temporelle et Spectrale pour une application à l'endomicroscopie bi-photonique

Mickaël Lelek 1
1 PHOTONIQUE
XLIM - XLIM
Abstract : This work first of all relates to two original techniuqes od single shot temporal characterization of short light pulses. A liquid core fibre autocorrelator based on two photon fluorescence is demonstrated. The second method, named SPIRIT is based on spectral interferometry resolved in time. It implements an interferometric stage followed by a non-linear stage of all optical time sampling. A two dimensional evolution of SPIRIT benefiting from spectral and temporal dimensions is also presented.
The second part of this work relates to femtosecond pulse delivery with optical fibers for an application to non-linear endomicroscopy. TEmporal and spectral shaping allows the compensation for chromatic dispersion and self phase modulation occuring in the endoscopic fiber that is made of a bundle of thousands of optical fibers. The non-linear endomicrsocope allowed the recording of two photon images of human colon cells for a low average power incident on the biological tissues.
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Contributor : Mickael Lelek <>
Submitted on : Saturday, April 14, 2007 - 4:43:11 PM
Last modification on : Thursday, January 11, 2018 - 6:26:10 AM
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Mickaël Lelek. Caractérisation d'impulsions brèves. Mise en forme temporelle et Spectrale pour une application à l'endomicroscopie bi-photonique. Physique Atomique [physics.atom-ph]. Université de Limoges, 2006. Français. ⟨tel-00141705⟩

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