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Claude Cohen Tannoudji

Prix Nobel en 1997 pour le ralentissement et le piégeage des atomes par la lumière laser.

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Accueil du site > Séminaires > LAC > Quantum measurement in living cells, and high-coherence electron bunches from cold atoms

Quantum measurement in living cells, and high-coherence electron bunches from cold atoms

Séminaire de R.E. Scholten (University of Melbourne, Australia)

Jeudi 8 mars 2012 à 14h, salle Balmer

Abstract :

This talk will review two very different approaches to imaging in the biological context. The first relies on the NV defect centre in diamond, a promising single spin system for quantum measurements and imaging. We have demonstrated optically detected magnetic resonance (ODMR), Rabi cycling and spin-echo of individual fluorescent nanodiamond NV centers inside living human HeLa cells.

The second is the development of a new source of high-coherence electron bunches based on photoionisation of laser-cooled atoms. With laser control of the cold atom cloud, we can shape the electron bunches, and because the electrons are so cold, they retain their shape during propagation. While labeled by colleagues as “the world’s most expensive TV”, it offers the control needed to generate ultra-high-brightness bunches for coherent diffractive imaging at nanometer and femtosecond resolution.


Contacts séminaires : Jean-Pierre GALAUP, Laurence PRUVOST (01 69 35 21 01)


Voir en ligne : http://www.lac.u-psud.fr

Post-scriptum :

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