Concept

Network analyzer (electrical)

Related publications (59)

Geometry-enhanced magnetoresistance of narrow Au∕InAs hybrid structures incorporating a two-dimensional electron system

We have investigated the magnetoresistance of metal-semiconductor hybrid structures at 4.2 K. The devices consisted of polycrystallineAu and an InAs-based heterostructure that hosted a high-mobility two-dimensional electron system. We have varied the elect ...

American Institute of Physics2006

Finite-element modelling of superconductors in over-critical regime with temperature dependent resistivity

Francesco Grilli, Joseph Duron, Bertrand Dutoit

In this paper, we present a new numerical model, in which both the thermal and the electromagnetic aspects of the over-critical current regime of HTS materials are taken into account. The electromagnetic and thermal equations have been implemented in finit ...

2006

Proton-induced degradation of Thin-Film Microcrystalline Silicon Solar Cells

Christophe Ballif, Arvind Shah, Xavier Niquille

This paper investigates the stability of dilution series of pin and nip microcrystalline silicon solar cells under low-energy proton irradiation (E = 405 keV). Variation of electrical parameters, defect-related absorption and Urbach parameter are investiga ...

2006

Modélisation de matériaux supraconducteurs

Joseph Duron

This thesis is focused on the modelling of superconducting materials, and in particular, high-temperature superconducting materials. This work is divided in two parts: first, the dynamic magnetic field mapping obtained by measurements is used in order to r ...

EPFL2006

Rigorous approach to bore-sight self-calibration in airborne laser scanning

Jan Skaloud

We present a rigorous method for estimating some of the calibration parameters in airborne laser scanning (ALS), namely the three bore-sight angles and the range-finder offset. The technique is based on expressing the system calibration parameters within t ...

2006

Piezoelectric micromachined ultrasonic transducers based on PZT thin films

Nava Setter, Paul Muralt, Nicolas Ledermann

This paper describes fabrication and characterization results of piezoelectric micromachined ultrasonic transducers (pMUTs) based on 2-mu m-thick Pb(Zr0.53Ti0.47O3) (PZT) thin films. The applied structures are circular plates held at four bridges, thus par ...

2005

Numerical modelling of a HTS cable in AC regime

Francesco Grilli, Bertrand Dutoit

The current repartition inside a HTS cable is very important for determining its AC losses and can be influenced by the uniformity of several parameters, either linked to the physical properties of the individual tapes (critical current Ic and power index ...

2004

Latency of wireless sensor networks with uncoordinated power saving mechanisms

Patrick Thiran, Olivier Dousse

We consider a wireless sensor network, where nodes switch between an active (on) and a sleeping (off) mode, to save energy. Their switching on/off schedules are completely non-coordinated. Their positions are distributed according to a Poisson process, and ...

2004

Etude de la microstructuration du verre par étincelage assisté par attaque chimique

Valia Fascio

We are surrounded by glass! This material has been greatly used for thousand years. More than 2000 years ago in ancient Egypt glass was used to manufacture bottles of perfume. So its first uses were primarily related to decoration and jewellery. The resear ...

EPFL2003

Micromachined Strip Line with SU-8 as the Dielectric

Mona Julia Katharina Klein

For the first time this paper presents strip lines fabricated using SU-8 as the dielectric material. It shows the complete fabrication process of micromachined strip lines with a total height of 35.5 um as well as their characterization by on-wafer S-param ...

2003

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