Top articles
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Aluminum corrosion protection by ALD and PECVD for UV plasmonics
What happens when you shine a UV laser onto a single aluminum nanohole filled with water? See the video below of the experiment, accelerated 5x. Holes get brighter once exposed to the laser: this is laser-induced corrosion of the aluminum film by water...
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Being efficient during your PhD
As a teaser to Jerome's talk at the Institut Fresnel PhD days next Thursday, here is a video of the scientific communication expert and gourou Jean-Luc Doumont. The slides can be found on the Principiae website here, along with many other stimulating...
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Job Offer Postdoc Position Nano-optical trapping combined to fluorescence microscope
We are seeking for a physicist with expertise in experimental nanophotonics, plasmonics and/or optical trapping. The successful candidate will be responsible for the development of the nanooptical trapping microscope combined to single molecule fluorescence...
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Job Offer Postdoc Position: Protein Biochemistry / Protein Biophysics at the single molecule level
To strengthen our multidisciplinary team, we are seeking a biochemist or biophysicist with expertise in protein chemistry or protein biophysics. The successful candidate will be responsible for the preparation of the protein samples with or without external...
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Job offer PhD fellowship : Optical nanoantennas to enhance single molecule fluorescence detection
Nanophotonic elements to manipulate energy at the nanoscale and go significantly beyond the conventional diffraction-limited microscopes. The objective of this project is to extend the applicability of conventional optical microscopes using optical nanoantennas...
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Label-free molecular diagnosis and biosensor: Introducing PhOCCS technology
Label-free molecular biosensors featuring a high sensitivity together a simple manipulation and low operation costs remain a major technological challenge. We introduce a novel technique for high sensitivity specific DNA sensing in a single step homogeneous...
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New article: self-assembled plasmonic nanoparticle dimer antennas
Plasmonic antennas have a strong potential to enable monitoring biochemical reactions in nanometer-sized volumes with high sensitivity. However, the difficulty to realize nanometer gap sizes with lithography has restricted the broad use of plasmonic antennas...
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Plasmonics and Metamaterials at CLEO Europe EQEC Munich 2015
The technical program meeting for the CLEO Europe EQEC conference has just been held. For the EH Plasmonics and Metamaterials topic, we will have a total of seven sessions: - Dielectric and hyperbolic metamaterials - Chirality in plasmonics and metamaterials...
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Optimizing Nanoparticle Designs for Ideal Absorption of Light
Metallic nanoparticles and more recently dielectric nanoparticles are receiving tremendous attention due to their ability to concentrate light energy into volumes at the nanometer scale. Optimizing the absorption of light by suitably designed nanoparticles...
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The big update
With the transfer to the new kiwi platform, Overblog almost killed the blog. The transfer was a real mess and all articles in 2006-2012 period have been lost... I seriously considered shutting down this site and going elsewhere, but at the end, I like...
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Conformations of MreB protein interacting with GroEL/ES and TRiC chaperonins
Chaperonins ensure correct functional folding of proteins in cells. Despite their crucial role, their mechanisms of action are still open to questions. In a recent Scientific Report study “Differential conformational modulations of MreB folding upon interactions...
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Competition between Förster Resonance Energy Transfer and Donor Photodynamics in Plasmonic Dimer Nanoantennas
Plasmonic nanoantennas provide powerful means to concentrate light into nanoscale dimensions and enhance the fluorescence from single quantum emitters. However, the effects of a resonant plasmonic antenna on Förster resonance energy transfer (FRET) between...
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Coupling Emitters and Silver Nanowires for Long-Range Plasmon-Mediated FRET
Quantum plasmonics and the interaction of quantum emitters with metal nanostructures are receiving a large interest. However, coupling two quantum emitters via a surface plasmon waveguide has remained a major technical challenge. In a recent ACS Nano...
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Plasmonic nanoantennas enable forbidden FRET
FRET is highly sensitive to the mutual orientation of donor and acceptor dipoles, and can be strongly prohibited for perpendicularly oriented dipoles. However, all previous studies combining FRET with nanophotonics largely overlooked this orientation...
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All-Dielectric Silicon Nanogap Antennas To Enhance the Fluorescence of Single Molecules
Plasmonic optical antennas enhance light-matter interactions at the nanoscale, yet this phenomenon is currently limited by the ohmic losses in the metal. Silicon-based nanophotonics is an appealing alternative approach to implement cost-effective CMOS-compatible...
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Fluorescence enhancement with double nanohole aperture
Plasmonic antennas enable monitoring biochemical reactions in nanometer-sized volumes with high fluorescence brightness. Among the antenna designs, the double nanohole (DNH) is attracting much interest thanks to its distinctive advantages of narrow gaps,...
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Nanogap optical antennas to enhance FRET
Confining light at a spatial scale comparable to the molecular size opens unexplored opportunities to enhance Förster resonance energy transfer (FRET), which is a ubiquitous phenomenon governing the energy exchange at the nanoscale. In a recent Nano Letters...
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FRET enhancement in aluminum nanoapertures
Metal nanoapertures known as zero-mode waveguides (ZMWs) are receiving a large interest as they concentrate light into nanoscale volumes and enable single molecule fluorescence experiments at micromolar concentrations. Within the large single molecule...
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ERC Proof of Concept project funded!
We are glad to report that our proposal PHOCCS has been accepted for funding by ERC Proof of Concept scheme. The project officially starts on May 1st 2015 for 18 months. Abstract: Across Europe, nearly 250,000 people die every year of sepsis, a severe...
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Picosecond lifetimes and high quantum yields in plasmonic dimer antennas
Coupling single fluorescent emitters to plasmonic resonators is essential in optimizing solid-state light sources. However, the non-scalability of the current approaches remains still a major challenge. In a recent ACS Nano publication, we overcome the...
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New article: 3D superlocalization of nanoparticles with subnanometer accuracy
Super-resolution microscopy techniques such as PALM/STORM/STED are revolutionizing optical imaging. While diffraction is no longer a limit, another technical barrier arises driven by the need to compensate for mechanical and thermal drifts at the nanoscale....
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Workshop : Plasmonics in biology and medicine
I’ll attend (and give a talk) at the next workshop on plasmonics in biology and medicine, to be held on Friday December 14th 2007 at ESPCI, 10 rue vauquelin 75005, Paris Visit the website : http://gdr2588.ibl.fr/plasmon/intro_plasmonique.php Registration...
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Microsphere-enhanced single molecule fluorescence
Our latest paper has been published in the July issue of the Journal of the Optical Society of America B. Free reprints for personal use only are available on our group website here. In this manuscript, we investigate the interaction between a dipolar...
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Next conference : SPP4 Amsterdam
I will be at the next international conference on surface plasmon photonics, to be hold June 21-26 in Amsterdam : http://www.spp4.org/ Meet you after my talk O-02 “Merging fluorescence correlation spectroscopy and plasmonics: characterizing nanostructures...
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Nanoapertures for biophotonics
Published in the International Journal of Materials and Product Technology, in a special issue on nanostructured materials for photonics applications : Biophotonics applications of nanometric apertures Jerome Wenger, Davy Gerard, Pierre-Francois Lenne,...
