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Publications associées (126)

Tubular Geodesics using Oriented Flux: An ITK Implementation

Pascal Fua, Engin Türetken, Fethallah Benmansour

This document describes an ITK implementation of an interactive method for tracing curvilinear structures. The basic tools provided in this framework are an oriented flux-based tubularity measure and a geodesic path tracer that uses the fast marching algor ...

2013

Investigation of indium-rich InGaN alloys and kinetic growth regime of GaN

Nils Asmus Kristian Kaufmann

Nowadays, light emitting diodes (LEDs) and laser diodes (LDs) are part of our daily life. More and more devices incorporate InGaN-based optoelectronic devices. In fact, since the first demonstration of a candela-class InGaN-based LED in the beginning of th ...

EPFL2013

Fabrication and formation of Ta/Pt-Si ohmic contacts applied to high-temperature Through Silicon Vias (TSVs)

Nico de Rooij, Danick Briand, Terunobu Akiyama, Rokhaya Gueye

Platinum/tantalum/silicon ohmic contacts were designed, fabricated and characterized to withstand high-temperature post-processing: the ohmic behavior was maintained after 1 h annealing, at temperatures up to 850 degrees C in an oxidizing environment. A LP ...

Elsevier2013

Significance of View Direction in Simulating Circadian Potential of Architectural Spaces

Sharon Jane Gochenour

This research paper aims to simplify the question of how to take human movement into account when assessing the lighting conditions of a space. For a person working at a desk throughout the day doing paper-based or screen-based tasks, if it is assumed that ...

2013

Post-tensioned structural glass beams, experimental investigations

Jean-Paul Lebet, Pieter Christian Louter, Thibaut Jordan, Arno Pérez

In this study the structural response of post-tensioned structural glass beams is investigated. This is done through four-point bending tests on two series of post-tensioned glass beam specimens. The beams consist of three layers of annealed float glass an ...

Taylor & Francis Group2013

LTCC integrated miniature Rb discharge lamp module for stable optical pumping in miniature atomic clocks and magnetometers

Herbert Shea, Peter Ryser, Thomas Maeder, Fabrizio Vecchio, Vinu Lalgudi Venkatraman

We report here on an integrated mini-lamp module (15x26x4 mm3) with a microfabricated rf-powered Rb dielectric barrier discharge (DBD) lamp (10x10x3 mm3) positioned on top of a 0.6 mm thick (thickness adjustable) 4-layer LTCC (Low Temperature Co-fired Cera ...

IEEE2012

Generation of highly confined optical bottle beams by exploiting the photonic nanojet effect

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We report on the generation of photonic nanojets, which resemble optical bottle beams. They are realized by manipulating the illumination of dielectric microspheres. As illumination we use the outer region of deliberately truncated Bessel-Gauss beam or a f ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Identification of the factors affecting co-localization precision for quantitative multicolor localization microscopy

Aleksandra Radenovic, Paolo Annibale, Marco Scarselli, Mattia Greco

This work explores the potential of multi-color Photoactivated Localization Microscopy (PALM) imaging to probe sub-diffraction limit interactions between proteins with spectrally separated labels. Using a PALM setup built around a commercial microscope axi ...

SpringerOpen2012

Generic picture of the emission properties of III-nitride polariton laser diodes: Steady state and current modulation response

Nicolas Grandjean, Raphaël Butté, Jacques Levrat, Georg Rossbach, Marlene Glauser, Munise Nevin Cobet

The main emission characteristics of electrically driven polariton lasers based on planar GaN microcavities with embedded InGaN quantum wells are studied theoretically. The polariton emission dependence on pump current density is first modeled using a set ...

Amer Physical Soc2012

Testing the Elliott-Yafet spin-relaxation mechanism in KC8: A model system of biased graphene

László Forró

Temperature-dependent electron spin resonance (ESR) measurements are reported on stage-1 potassium-doped graphite, a model system of biased graphene. The ESR linewidth is nearly isotropic, and although the g factor has a sizable anisotropy, its majority is ...

2012

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