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    Health Point

    yesterday - Safety, health & prevention The Healthpoint, located at CM 0351, offers occupational health facilities with occupational health specialists and primary care appointments with nurses in collaboration with the PMU (Policlinique Médicale Universitaire) for the whole EPFL community.

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    Safety equipment catalog

    yesterday - Safety, health & prevention An electronic catalogue, has been created on the sesame portal "purchasing plateform" for safety equipment such as first aid kits, emergency eyewash units, extinguishers, specific masks, safety overalls, safety posters, plexiglas frame for safety data sheets, etc.

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    30 km/h zone. What does it mean?

    yesterday - Safety, health & prevention A 30 km/h zone is made up of sections of roads along which the activities of those on foot are favoured in relation to traffic.

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    Beware of theft!

    yesterday - Safety, health & prevention Someone suspicious on the premises? Call 115 or 021 693 3000 (24 hours a day) immediately!

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    A lunch with an astronaut

    yesterday - Swiss Space Center Three students had the opportunity to meet Claude Nicollier after they won a competition organized by the Swiss Space Center at the TecDay in Zofingen in February.

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    EPFL IEEE student wins the IEEE Region 8 Student Paper Contest 2014

    yesterday - IEEE Student Branch Slobodan Mitrović won the first prize of the contest with his paper "Homometric Sets in Diameter-two and Outerplanar Graphs". Slobodan's paper was selected to be one of the five finalist papers, and he managed to get the first position after the presentation of his work during the MELECON 2014 Conference, which took place last Tuesday (15.04.2014) in Beirut, Lebanon.

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    High level visit and inauguration of swissnex Brazil

    22.04.14 - Cooperation BRAZIL: April 4-6, 2014 EPFL participates with the official Visit of FC Johann N. Schneider-Ammann in Brazil

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    Detection limit of plasmonic antennas

    22.04.14 - Nanophotonics and Metrology We use numerical simulations based on the surface integral technique to study the detection limit of plasmonic trapping with realistic dipole antennas. The induced plasmon resonance shift due to the coupling between an antenna and a nanoparticle is studied for different antennas geometries, different positions, sizes, and materials for the trapped nanoparticle. The shift of the antenna resonance is found to be linear with the near-field intensity enhancement caused by the antenna and further dependents on the volume and refractive index of the trapped nanoparticle. Detection limit of 5 nm for plasmonic particles and 6.5 nm for high index dielectrics is reported.

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    Bending plasmons around the corner

    22.04.14 - Nanophotonics and Metrology Using a finite-element, full-wave modeling approach, we present a flexible method of analyzing and simulating dielectric and plasmonic waveguide structures as well as their mode coupling. This method is applied to an integrated plasmonic circuit where a straight dielectric waveguide couples through a straight hybrid long-range plasmon waveguide to a uniformly bent hybrid one. The hybrid waveguide comprises a thin metal core embedded in a two–dimensional dielectric waveguide. The performance of such plasmonic circuits in terms of insertion losses is discussed.

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    Oxygen sensing using a strongly coupled bio-plasmonic system

    22.04.14 - Nanophotonics and Metrology We investigate theoretically the strong coupling between surface plasmon resonances (SPRs) and absorption bands of hemoglobin. When the surface plasmon resonance spectrally overlaps the absorption bands of hemoglobin, the system is strongly coupled and its dispersion diagram exhibits an anti-crossing. Working in the conditions of strong coupling enhances the sensitivity of a SPR sensor up to a factor of 10. A model for the permittivity of hemoglobin, both in oxygenated and deoxygenated states, is presented and the study is carried out for both angle and wavelength modulated SPR sensors. Finally, a differential measurement is shown to increase the sensitivity further.

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