Top articles
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Latest article: analyzing fluorescence
Fluorescence is a powerful and versatile method that is widely used in several scientific fields. However, when it comes to analyze the origin of a given fluorescence signal (i.e. calibrating the excitation intensity, the number of emitters and their...
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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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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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Jerome Wenger is awarded the Branly Prize 2011
The Branly prize is designed in memory of Edouard Branly to highlight a young researcher working on waves and their applications. It is currently managed by the Edouard Branly association, the French Society of Physics SFP, the French Society of Optics...
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NanoVista project: photonic antennas for biology
One of the ultimate challenges in biology is to understand the relationship between the structure, function and dynamics of biomolecules in their natural environment: the living cell. The goal of NANO-VISTA is to exploit novel concepts of photonic antennas...
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Nanophotonics job updates
In late 2012, several job offers in nano-optics and biophotonics were posted. See the call webpage here. Several positions have been filled now, I am delighted to welcome new young scientists in the coming weeks. Positions still open: PhD position NanoVista...
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Jerome Wenger receives the Branly Prize 2011
Edouard Branly in his office, circa 1932 80 years later... JW in Edouard Branly's office, after the Branly prize award. See the funny detail in the painting by Branly's daughter, you can see Branly taking Zeus lightnings Edouard Branly's intruments have...
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Latest article: how to enlarge your plasmonic enhancement factor
Recently released in International Journal of Optics, this study describes how to show enlarged values of fluorescence enhancement factor using optical (plasmonic) antennas without changing the antenna design. The discussion here focuses on the influence...
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Japan-France Frontiers of Engineering Symposium 2012
Just got back from the frontiers of engineering symposium held end February in Kyoto Japan. Very positive impression of both Japan and conference. Kyoto conference center Japanese-style conference dinner Colleagues Aloyse Degiron and Alexandre Bouhelier...
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Teaser: Optical Antennas Book
A book reviewing all aspects of optical antennas is to be published this year (presumably?) by Cambridge University Press, edited by Andrea Alu and Mario Agio. For those interested in the specific configuration of aperture antennas, you may download a...
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New book released !
Ultimate geekiness: my Phd thesis has been turned into a real book, that is now available online via amazon or morebooks. To make it short: I didn't pay anything to the editor, the editor did a great job (positive feedback), I don't get any money from...
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Fun with Plasmonics: DIY Lycurgus cup
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...
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Dive into a single nanoaperture
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...
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Latest article: imaging the Gouy phase shift in photonic nanojets
Recently released in Optics Letters, our article reports on the use of a commercial wavefront sensor to directly monitor and image the Gouy phase shift in photonic nanojets created by micrometer-sized dielectric spheres. Compared to previous demonstrations,...
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Bert Hecht visits the Fresnel Institute
It's a great pleasure to welcome Prof. Bert Hecht for a colloquium on Sept. 27th 2pm (Ponte amphitheater). Nano-Optics: From optical antennas to atomic-scale confinement of optical fields Abstract: In 1959, when nanoscience as we know it today was still...
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Excitation Enhancement of a Quantum Dot Coupled to a Plasmonic Antenna
Check our work recently published online at the Advanded Materials website. For the first time, we investigate experimentally the luminescence enhancement of a single quantum dot deterministically coupled to a plasmonic gap antenna. We also provide the...
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Background-free optical fiber probe for Raman spectroscopy
Optical fiber probes are generating a large interest for portable Raman spectrometers. However, the use of conventional fibers is severely limited by the high luminescence background generated in the silica, which complicates the signal processing and/or...
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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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Optical Antennas Book Released
Now available from Cambridge University Press, the Optical Antennas book edited by Mario Agio and Andrea Alu. This consistent and systematic review of recent advances in optical antenna theory and practice brings together leading experts in the fields...
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Invited talk at SPP6 conference Ottawa
Deep's abstract on Plasmonic nanoantennas for enhanced single molecule analysis at micromolar conentrations has just been promoted for invited talk presentation at the 6th International Conference on Surface Plasmon Photonics SPP6. As a teaser, our main...
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3rd summer school on plasmonics SSOP3
Submissions and registrations for the 3rd Summer School On Plasmonics are now open. This summer school will bring together international specialists in Plasmonics on one of the most beautiful islands of the Mediterranean. Check out the exciting program...
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Antenna-in-box platform to enhance single molecule detection
In a collaboration between the Fresnel Institute and ICFO-the Institute for Photonic Sciences, we report in Nature Nanotechnology a novel “antenna-in-box” platform for single molecule fluorescence detection with unprecedented resolutions and sensitivity....
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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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Latest paper: Weierstrass factorization in nanophotonics
Optimizing the resonant properties of complex optical antennas is often a complex and time-consuming task. To ease the computational process and provide physical guidelines to the design optimization, we introduced in a publication in Physical Review...
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Beaming of fluorescence light with plasmonic crystals
Collecting each and every photon that a single molecule emits is a major goal in nanophotonic devices. To boost extraction efficiencies, the two mainstream strategies are on one hand plasmonics to enhance local field strengths and induce antenna effects,...
