Top articles
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Job offers Nanophotonics
PhD and postdoc positions in both experimental and theoretical nano-optics are still open. Full info on the different projects and application procedure, click here. Key benefits from Fresnel - Marseille: * ambitious innovative research, projects were...
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Several PhD & PostDoc Positions Nano-Opics
The Institut Fresnel is a research state laboratory based in Marseille / France, devoted to research and higher education in all areas of optical and photonic sciences. The Institut Fresnel is seeking to recruit talented, enthusiastic young scientists...
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Photonic engineering of fluorescent dyes
The development of bright water-soluble luminescent probes is a ubiquitous problem in imaging and sensing applications. Designing fluorescent dyes typically relies on a molecular engineering approach in which photophysical properties are tuned by chemical...
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Plasmonic antennas and zero mode waveguides review
We have recently published a review paper about plasmonic antennas and zero mode waveguides (nanoapertures) to enhance the detection and analysis of fluorescent molecules. Single molecule spectroscopy techniques, FRET and FCS can greatly benefit from...
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Next conference : European Optical Society Annual Meeting
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...
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Latest paper published : microspheres for fluorescence detection
Just published in September 1 issue of Analytical Chemistry : Disposable Microscope Objective Lenses for Fluorescence Correlation Spectroscopy Using Latex Microspheres An inexpensive low numerical aperture lens is used instead of a costly conventional...
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French-Taiwanese symposium on Frontiers of Sciences
Back from the first French-Taiwanese symposium on Frontiers of Sciences, which was held in Taiwan from 25th to 29th of June this year. I’m very pleased to have attended this stimulating exchange. Taking some distance from the everyday’s lab work is always...
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News & Views: Breaking the concentration barrier
In the July issue of Nature Nanotechnology, read the News & Views about our recent work by Prof. Philip Tinnefeld. "The combination of a plasmonic nanoantenna and a nanoaperture has merged fluorescence enhancement and spatial confinement to enable single-molecule...
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Celebrating the laser 50th anniversary in Marseille
From tonight, and ongoing every Friday night in June, a 10W green laser beam will be sent over Marseille historical center. This will redo Fizeau's experiment and measure the speed of light. See the blog: un laser sur Marseile Different animations will...
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Next international conferences
The following meetings are scheduled : - France/Taiwan Frontier of Science Symposium, Taiwan, June 26-27 http://www-direction.inria.fr/international/ASIE_OCEANIE/FoS_France_Taiwan/ - Gordon Research Conference on Plasmonics, Tilton NH, July 26-31 htt...
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Latest paper published : emission and excitation enhancements in single gold nanoapertures
Released in the march 03rd issue of Optics Express : we detail the role of single nanometric apertures milled in a gold film to enhance the fluorescence emission of Alexa Fluor 647 molecules. By “detailing”, we mean we characterise the effects of the...
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Latest publication : plasmon-assisted enhancement in a single nanoaperture
Published recently in Optics Express, it’s freely available at : http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-3-2276 A single nanometric aperture surrounded by a circular channel groove in a metallic screen can increase the electric field intensity...
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We're hiring: Expert on nanofabrication of photonic nanostructures
Within our new ERC Proof of Concept project “PrintNano4Fluo”, we aim at bridging the technological gap between nanophotonics and single molecule fluorescence techniques. Our vision is to develop a cost-effective and scalable nanofabrication technique...
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Scientific days of the Active Plasmonics GDR - Marseille July 10-12th
We are glad to announce that we will be hosting the next plenary scientific days of the GDR Active Plasmonics in Marseille Campus Saint Charles from 10th to 12th of July 2023. The topics cover all forms of plasmonics and nanophotonics, from fundamentals...
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Nanoscale control of smFRET by a scanning photonic nanoantenna
Förster Resonance Energy Transfer (FRET) governs energy exchanges at the nanoscale and can be used to accurately measure intra- and inter-molecular distances with sub-nm accuracy. While photonic nanoantennas have been shown to modify FRET, most of the...
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The Armada is on fly again
Soon our flag will flutter again over the Sea of Nanos. Wed. May 13th 2pm CEST: Ebbesen's Blade is on fly again. Thu. May 14th 3pm CEST: Shadow Princess took off and is fully operational. Fri. May 15th 12am CEST: Arcadia hashin! Thu. May 28th 4pm CEST:...
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Near-field Optics and Nanophotonics conference NFO13
Deep Punj is giving a talk at the 13th international conference of Near-field Optics and Nanophotonics NFO13 on nanoantennas for enhanced single molecule fluorescence detection at high concentrations. Our group will also have two posters: - Plasmonic...
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Plasmonics and Metamaterials at CLEO/Europe EQEC 2015 Conference
Paper submission is open to join the next CLEO/Europe-EQEC conference at Munich in June 2015. The CLEO/Europe-EQEC conference series has a strong tradition as a comprehensive and prestigious gathering of optics and photonics researchers and engineers...
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Ultrahigh-sensitivity ultralow-noise optical fiber endoscope
Optical fiber probes are generating a large interest to develop portable fluorescence spectrometers. However, the sensitivity of conventional fibers is severely limited by the high luminescence background generated in the glass and the low collection...
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[ArmadaCrew] Emergency evacuation order
[Arcadia - Queen Emeraldas Revenge - Shadow Princess - Ebbesen's blade crew member] Immediate evacuation order by emergency exits. This is not an exercise. Retreat with calm and discipline. ---- Gentlemen, it's been an honour and a privilege to be your...
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No virus will stop the ERC
Organic chemistry is gaining an increasing interest in the optics lab these days. According to WHO, here is a simple hanrub sanitizer recipe: For a 1L solution, mix 833mL ethanol 96%, 4.2mL hydrogen peroxide 30%, 1.5mL glycerol and 161mL pure water. Shake...
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Adhesion Layer Influence on Controlling the Local Temperature in Plasmonic Gold Nanoholes
Adhesion layers of chromium or titanium are widely used in plasmonics to ensure a proper adhesion between a gold film and a glass substrate. However, very little is known about their influence on the thermal response. As a result, the adhesion layer is...
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Reproducing Fresnel-Arago experiment to illustrate the main concepts of physical optics
Following our video series on Fresnel-Arago experiment's modern version, we have relased an arXiv paper describing how to mount the setup, prepare the sample and perform a selection of experiments. Many concepts of physical optics can be visually illustrated...
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Long-Range Single-Molecule Förster Resonance Energy Transfer between Alexa Dyes in Zero-Mode Waveguides
Förster resonance energy transfer (FRET) is widely used as a molecular ruler to monitor biomolecular conformations and interactions dynamics, but FRET is generally limited to distances below 10 nm. Last year, we showed that zero-mode waveguides (ZMW)...
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Complete Electromagnetic Dyadic Green Function Characterization in a Complex Environment—Resonant Dipole-Dipole Interaction and Cooperative Effects
The Green function plays a central role in wave propagation, as it describes the response of a system to an arbitrary impulse. However, measuring it experimentally is very challenging since it needs to be measured in both amplitude and phase with deep...
