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Publications associées (59)

Slanted hole array beam profiler (SHArP) - A high-resolution portable beam profiler based on a linear aperture array

We demonstrate a novel high-resolution portable beam profiler based on a slanted linear array of small apertures, termed a slanted hole array beam profiler (SHArP). The apertures are directly fabricated on a metal-coated CMOS imaging sensor. With a single ...

2006

Characterization of light collection through a subwavelength aperture from a point source

Demetri Psaltis

We experimentally measure and theoretically model the light transmission characteristics of subwavelength apertures. The characterization consists of translating a point source at varying vertical height and lateral displacement from the aperture and measu ...

2006

High resolution differential laser interferometry for the VLTI (Very Large Telescope Interferometer)

Olivier Boris Scherler

One method for locating extrasolar planets is to observe the lateral movement of a star in the sky caused by a planet in orbit around it. In order to detect this displacement, the angular position of the star has to be measured with high accuracy. This tec ...

Institut de Microtechnique, Université de Neuchâtel2006

Exploiting Multi-Temporal Information for SAR Image Segmentation

Jean-Philippe Thiran, Meritxell Bach Cuadra, François Aspert

Earth observation is taking more and more importance in our society. Indeed, recent technologies march allows for satellite images to get ground resolution up to less than one meter. Thus, most of satellite image information obtained begins now to be widel ...

2006

Nanostencil technique and its applications to Nanoelectronics

Jürgen Brugger, Oscar Vazquez Mena

The Nanostencil technique is an emerging nanopatterning method based on shadow mask evaporation. Micro and sub-micron apertures (down to 100-nm scale) are patterned in 100-500 nm thick low-stress silicon nitride membranes. The membrane is brought in close ...

2005

Complex oxide nanostructures by pulsed laser deposition through nanostencils

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

We achieved parallel nanoscale patterning of ferroelectric complex oxides by pulsed laser deposition through a nanostencil (i.e., through a pattern of apertures in a thin free-standing membrane). Ordered arrays of nanostructured barium titanate (BaTiO3) we ...

2005

Nanoscale dispensing of liquids through cantilevered probes

Nico de Rooij, Terunobu Akiyama, Sylvia Jeney, André Meister

Nanoscale dispensing is a novel technique to deposit material and create structures at dimensions of 100 nm and below. It has great flexibility in feature shape and choice of deposited material. Due to its potential low cost and lack of time consuming step ...

2003

2,2-Di(ethoxy)vinyllithium: a synthetic equivalent of the ethyl acetate anion

2,2-Diethoxyvinyllithium (I) can be readily generated from 2-bromo-1,1-diethoxyethylene by treatment with butyllithium. Reaction of I with electrophiles e.g. chlorotrimethylsilane gives Me3SiCH:C(OEt)2. When dissolved in THF, I can be stored at -25 DegC fo ...

1996

All-fiber interferometer for chromatic dispersion measurements

Luc Thévenaz

An all-fiber interferometric method for chromatic dispersion measurements in meter-length single-mode fibers is presented. In a Michelson setup the physical length of a reference fiber was varied so as to obtain adjustable optical delay. Time resolution, e ...

1988

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