Introduction

This blog describes Jerome Wenger's research on Nano-Bio-Photonics.

Research interests: Nano-Optics, Biophotonics, Plasmonics, Single Molecules, Molecular Sensing & Spectroscopy

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Contact : jerome.wenger{-at-}fresnel.fr

Fresnel Institute CNRS UMR7249

Domaine Universitaire St Jerome

13397 Marseille, France

Phone: +33 4 91 28 84 94

twitterlogo.jpg Twitter profile: jeromewenger

 

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People involved

Current squad:

- Jerome Wenger (PI)

- Deep Punj (PhD)

- Juan de Torres (PhD)

- Victor Grigoriev (PostDoc)

- Petru Ghenuche (PostDoc)

- Satish Moparthi (PostDoc)

- Laetitia Le Guay (Staff)

 

Fresnel lab coworkers:

- Nicolas Bonod

- Patrick Ferrand

- Sophie Brasselet

- Herve Rigneault

 

Collaborations:

- Thomas Ebbesen / ISIS

- Steve Blair / Utah Univ.

- Dan Oron / Weizmann Inst.

- Niek Van Hulst / ICFO

- Maria Garcia Parajo / ICFO

- Romain Quidant / ICFO

- Femius Koenderink / AMOLF

- Sebastien Bidault / Langevin Inst.

- Jerome Plain / LNIO UTT

 

Former coworkers:

- Richard Hostein (PostDoc)

- Nadia Djaker (PostDoc)

- Davy Gerard (PostDoc)

- Benoit Cluzel (PostDoc)

(all now assistant professors)

- Heykel Aouani (PhD, now postdoc at Imperial College)

 

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Curriculum J. Wenger

2012: Habilitation à Diriger des Recherches

2011: ERC Starting Grant

2009: Promoted 1st class by CNRS

2005: CNRS researcher (Institut Fresnel, Marseille)

2004: PhD Quantum Optics (Institut d'Optique, Orsay)

2001: Engineer Institut d'Optique Graduate School (Orsay)

Born April 1978

 

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Mardi 19 août 2014 2 19 /08 /Août /2014 13:34

Energy transfer between molecules is promoted when they are set in an environment that confines light

The energy transfer between molecules is an essential phenomenon for photosynthesis, photovoltaics and biotechnology. Now, thanks to the work of the Institut Fresnel Institute, energy transfer between molecules can be controlled and enhanced with optical structures etched at the nanoscale.

Researchers prepared pairs of energy donor and acceptor molecules linked by rigid double stranded DNA. These pairs were then inserted into apertures milled in a gold film with nanoscale dimensions. By accurately measuring the radiation properties of pairs of molecules, the researchers were able to demonstrate that the rate of energy transfer between molecules is 6 times greater when placed in a nanoaperture.

These promising results are clearing a new path to improve the energy transfer process widely used in life sciences and biotechnology. Optical nanostructures open up many potential applications for biosensors, light sources or photovoltaics.
This work has been supported by the European Research Council under ERC Grant 278242.

http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2014/nalefd.2014.14.issue-8/nl5018145/production/images/medium/nl-2014-018145_0006.gif

Mercredi 16 juillet 2014 3 16 /07 /Juil /2014 16:12

Wenger praises the team for 'being mentally strong' after they responded to criticism with an emphatic publication in Nano Letters: Nanophotonic Enhancement of the Förster Resonance Energy-Transfer Rate with Single Nanoapertures.

What is cool with football media is that it gives a never-ending list of fun pompous sentences...

http://www.ronaldo7.net/news/2012/cristiano-ronaldo-562-arsene-wenger-showing-his-thumbs-up-at-arsenal-fans.jpg

Vendredi 27 juin 2014 5 27 /06 /Juin /2014 17:08

Congratulations to Petru for winning the best poster prize at the C'Nano PACA Scientific Days 2014!

2012-06-01 13.55.03     http://www.cnano-paca.fr/conf/jsp2014/img/Logo-CNano-PACAsmall.png

Mercredi 18 juin 2014 3 18 /06 /Juin /2014 09:56

The ability to design metamaterials with the prescribed properties is a key to their numerous applications and a focus of intense studies in the photonics community. As metamaterials are engineered at a scale which is much smaller than the wavelength of light, it is possible to treat them as a homogeneous medium with the effective values of permittivity and permeability. Nevertheless, there is no common approach to extract these effective parameters despite the significant efforts of the research community over the last years.

In a recent paper published in Phys Rev B, we propose a novel approach to extract the homogenized parameters by analyzing the reflection and transmission spectra. We show that this generalization preserves the physical meaning of the effective parameters at high frequencies and in the vicinity of resonances, where the nonlocal contributions cannot be neglected. It is also shown the decomposition of scattering spectra into even and odd modes helps to separate various contributions and to derive the explicit formulas for the effective permittivity and permeability which always satisfy the passivity and causality constraints.

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Mardi 15 avril 2014 2 15 /04 /Avr /2014 20:34

There is currently one opening position for an Attaché Temporaire d'Enseignement et de Recherche ATER (one-year non-renewable assistant professor contract) associated to Aix Marseille University. The research program will be done in one the groups at the Fresnel Institute under the supervision of a statutory researcher.

Deadline for application April 30th

Contract start September 1st

See the application procedure: http://drh.univ-amu.fr/public_content/recrutement-ater-2014-2015-modalites-liste-postes-section

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