Articles récents

US-French collaboration

6 Février 2007 , Rédigé par JW Publié dans #Recent research work

For two weeks, we’ll be welcoming at Marseille Prof. Steve Blair and Colby Wilson from Utah University (Salt Lake City, ). We also welcome Mr Farhad Madhavi for three months. This is part of an ongoing international collaboration funded by NSF international PhD student exchange program.

The primary scientific goals of the extended-stay international research and educational visit to Institut Fresnel Marseille are to resolve the issue of the relative contributions of fluorescence excitation and emission enhancements in metal nanocavities and to study the influence of nanoaperture shape.

Boost your experimental research work

3 Février 2007 , Rédigé par JW Publié dans #Fancy lab

To get the experiments work properly, of course, much time has to be spent, much care has to be taken, BUT this is (generally) not enough.

There is a third point, which each expert knows, but mostly no one discusses about : the Experiment’s God needs to be satisfied. And to have Him in good mood, presents and gifts must be offered. Then, adding sweat and carefulness, the experiment will work for sure ;o)

Here is a picture of the presents to the Experiment’s God in Marseille :

And the proof that other groups know about it (© Jorge Cham):

Nanophotonics PhD position available !

1 Février 2007 , Rédigé par JW Publié dans #Recent research work

I’m looking for a PhD student to start on October 2007 on the topic of nanostructures to enhance optical contrasts in biophotonics. Different fundings are available depending on the candidate’s profile and motivation.

Abstract : The ability to producing nanometric structures which forms controlled with a resolution of few nanometers opens new prospects in nanophotonics. Thanks to these systems, we can confine the light field, and produce strong efficient cross-sections as well as an enhancement of the light intensity. This allows to reach effects impossible to obtain with systems of larger dimensions. The aim of this PhD is to study and work on nanostructures of controlled forms to enhance optical contrasts in biophotonics (fluorescence, spontaneous and stimulated Raman scattering). In particular, we will first focus on nanometric holes made in metallic films (gold, silver and aluminum). These structures have remarkable properties, specifically their ability of local enhancement of the electromagnetic field. Several properties are still to be discovered: from the understanding of fundamental phenomena to the development of applications in biophotonics.

Download a proposal here
and look for more information on the MOSAIC website.

Quantum optics movie

31 Janvier 2007 , Rédigé par JW Publié dans #Nanophotonics pick

An amazing video found on Google :

Young’s double slit experiment explained in a classical and in a quantum world. It's worth having a look !

Note : it's seems the link doesn't work properly on every computer, just copy and paste the address in the directory.

Optics eLearning

25 Janvier 2007 , Rédigé par JW Publié dans #Nanophotonics pick

I would like to support here a link to Marcel Leutenegger’s webpages on facilities towards optics learning and teaching. Very nice videos introducing the principles of image formation are available (to watch the videos, you’ll need a DivX decoder, see Marcel’s help webpage). 

By the way, I would also like to acknowledge Marcel’s nice work on microscopy at Theo Lasser’s group (EPFL, Lausanne).

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