Paris September 29th – October 2nd, several talks related to my work are planned :
- 09/29 TOM1 12:50 : J. Wenger et al “Dielectric microspheres to enhance single molecule fluorescence detection”
- 10/01 TOM4 13:50 : P. Ferrand et al “Direct observation of photonic nanojets”
- 10/01 TOM3 16:45 : P. Schoen et al “Nonlinear SHG enhancement in isolated metal nanoapertures”
- 10/01 TOM4 16:45 : A. Devilez et al “Beaming light with a single dielectric microsphere”
- Poster TOM4 677 : D. Gérard et al “Single-molecule fluorescence in subwavelength apertures: enhanced emission and photokinetics alteration”
Just published in September 1 issue of Analytical Chemistry :
An inexpensive low numerical aperture lens is used instead of a costly conventional high NA microscope objective to detect single molecule fluorescence, thanks to a latex microsphere set at the lens focus. The graphs below show fluorescence intensity correlation functions obtained with a 0.25NA doublet and a 3 µm microsphere and reference correlation function with a standard water-immersion 1.2NA microscope objective and no microsphere.
We demonstrate viable FCS experiments at concentrations 1−1000 nM with different objectives costing less than $40. This offers a simple and low-cost alternative to the conventional complex microscope objectives.
Back from the Plasmonics GRC in Tilton NH last July. As a synthesis, here is my selection of the top 10 hot stuff / challenges in the field for the next years, from the list that was written at the end of the meeting. The list was voluntary limited to ten items :
- Reproducible SERS and hot spot enhancement quantification
- Plasmonic structures inside bio cells
- Negative index devices
- Circuits models : new systems ?
- Plasmon laser / SPASER
- Plasmonics in energy sciences
- Role of disorder in plasmonics
- Non linear effects in plasmonics
- Graphene plasmons
- Plasmons in quantum information
See the paper by Lynn Savage in the July issue on the recent work of “Patrick Ferrand and colleagues at the Fresnel Institute” :