Articles récents

Dive into a single nanoaperture

1 Août 2012 , Rédigé par JW Publié dans #Recent research work

Metal subwavelength apertures have turned into essential devices to manipulate light at the nanoscale. However, experimentally characterizing the amplification brought by the nanoaperture on the excitation intensity remains a scientific and technical challenge. Such characterization is highly needed to fully understand and optimize the aperture’s design.
Our recent Optics Express manuscript describes a novel experimental method to directly characterize the aperture amplification on the excitation field independently on the emission process. We take advantage of the intrinsic nonlinear dependence of the fluorescence signal on the excitation intensity.

The most funny part is that we report enhanced nonlinear light-matter interaction using only a HeNe laser with less than 1mW CW power.

fig1.jpg

Fun with Plasmonics: DIY Lycurgus cup

6 Juillet 2012 , Rédigé par JW Publié dans #Fancy lab

The Lycurgus cup is one the famous examples demonstrating the amazing optical properties of noble metal nanoparticles. Now with minimum chemistry knowledge, you can synthetize your own gold particles (or buy them directly on line) to realize your own Lycurgus cup.

Image at 90° illumination: the gold particles scatter light with orange color.

2012-05-15-16.11.33---Copie.jpg

Image in transmission: the flask looks almost transparent with slight purple color.

2012-05-15-16.09.15---Copie.jpg

Lab Days Belambra Club Giens

19 Juin 2012 , Rédigé par JW Publié dans #Fancy lab

belambra-club-la-presqu-ile-de-giens0

2012-06-15-10.52.21-1.jpg

2012-06-14-19.21.14-1.jpg

Petru Ghenuche and Victor Grigoriev join the team

18 Juin 2012 , Rédigé par JW Publié dans #Fancy lab

Since the beginning of June, we welcome Petru Ghenuche (Romania) and Victor Grigoriev (Belarus). Both join as postdoc researchers on the ERC project. Petru will work on experimental nanophotonics and Victor will focus on theoretical and numerical simulations.

2012-06-01-13.55.03.jpg    2012-06-01-13.54.49.jpg

ERC-120x90.jpg

Jerome Wenger gets HDR clearance

7 Juin 2012 , Rédigé par JW Publié dans #Fancy lab

HDR_JW.JPG

Most relevant information:

- Champagne: Pannier Brut Selection (here)

- Fruit juices: Alain Milliat (here)

- Finger food: Villedieu traiteur (here)