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Publications associées (371)

High Resolution Interference Microscopy: A Tool for Probing Optical Waves in the Far-Field on a Nanometric Length Scale

Hans Peter Herzig, René Dändliker, Toralf Scharf, Iwan Märki

High Resolution Interference Microscopy (HRIM) is a technique that allows the characterization of amplitude and phase of electromagnetic wave-fields in the far-field with a spatial accuracy that corresponds to a few nanometers in the object plane. Emphasis ...

2006

Acoustic Tomography Method for Measuring Temperature and Wind Velocity

Martin Vetterli, Luciano Sbaiz, Ivana Jovanovic

We consider the problem of reconstructing superimposed temperature and wind flow fields from acoustic measurements. A new technique based solely on acoustic waves propagation is presented. In contrast to the usual straight ray assumption, a bent ray model ...

2006

Longitudinally polarized fields in near-field imaging systems

The evolution path of nanotechnologies moves through the domain of microscopy. Among all the kinds of imaging tools available today, optical imaging systems are of primary importance. When using optical imaging systems, we take profit of the information re ...

Institut de Microtechnique, Université de Neuchâtel2006

Acoustic tomography for estimating temperature and wind flow

Martin Vetterli, Luciano Sbaiz, Ivana Jovanovic

We consider the problem of reconstructing superimposed temperature and wind flow fields from acoustic measurements. A new technique based solely on acoustic wave propagation is presented. In contrast to the usual straight ray assumption, a bent ray model i ...

2006

One-Dimensional Modeling of Rotor Stator Interaction in Francis Pump-Turbine

François Avellan, Christophe Nicolet, Nicolas Ruchonnet

A one-dimensional hydroacoustic model is set up to perform the numerical simulation of the rotor-stator interaction of a Francis pump-turbine scaled model. The numerical results enable to identify both rotating diametrical modes in the vaneless gap between ...

2006

One-Dimensional Modeling of Rotor Stator Interaction in Francis Pump-Turbine

François Avellan, Christophe Nicolet, Nicolas Ruchonnet

International Association For Hydraulic Research2006

In-plane compression and shear performance of FRP bridge decks acting as top chord of bridge girders

Thomas Keller, Herbert Gürtler

This paper reports on the composite action developed between pultruded FRP bridge deck systems and the supporting main girders for road bridges. Presented are requirements that an FRP deck must satisfy in order to function as part of the upper chord of the ...

2006

Static dielectric properties of carbon nanotubes from first principles

Nicola Marzari, Boris Kozinsky

We characterize the response of isolated single-wall (SWNT) and multiwall (MWNT) carbon nanotubes and nanotube bundles to static electric fields using first-principles calculations and density-functional theory. The longitudinal polarizability of SWNTs sca ...

2006

Liver fibrosis: non-invasive assessment with MR elastography

Najat Salameh

The aim of this study was to assess the feasibility of using non-invasive MR elastography for determining the stage of liver fibrosis. Twenty-five consecutive patients who had liver biopsy for suspicion of chronic liver disease were included in the study. ...

Wiley-Blackwell2006

Optimization of finite diffraction gratings for the excitation of surface plasmons

Olivier Martin

The excitation of a surface plasmon polariton (SPP) wave on a metal-air interface by a diffraction grating under monochromatic normal illumination is investigated numerically. The influence of the different experimental parameters (grating thickness, perio ...

2006

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