Publications related to Verification of the Fourier-enhanced 3D finite element Poisson solver of the gyrokinetic full-f code PICLS

Coupling length of silicon-on-insulator directional couplers probed by Fourier-space imaging

Romuald Houdré, Nicolas Le Thomas, Jana Jágerská

We use a Fourier-space imaging technique relying on outcoupling grating probes to study the coupled mode interaction and dispersion properties of guided modes in silicon-on-insulator codirectional couplers. Our approach allows us to measure the mode splitt ...

American Institute of Physics2008

Fast focus field calculations

Theo Lasser, Marcel Leutenegger, Rainer Leitgeb

We present a method for fast calculation of the electromagnetic field near the focus of an objective with a high numerical aperture (NA). Instead of direct integration, the vectorial Debye diffraction integral is evaluated with the fast Fourier transform f ...

2008

Adaptive Sleep/Wake Classification Based on Cardiorespiratory Signals for Wearable Devices

Dario Floreano, Claudio Mattiussi, Walter Karlen

We describe a method to classify online sleep/wake states of humans based on cardiorespiratory signals for wearable applications. The method is designed to be embedded in a portable microcontroller device and to cope with the resulting tight power and weig ...

IEEE Press2007

The plenacoustic function and its applications

Thibaut Ajdler

This thesis is a study of the spatial evolution of the sound field. We first present an analysis of the sound field along different geometries. In the case of the sound field studied along a line in a room, we describe a two-dimensional function characteri ...

EPFL2006

Fast focus field calculations

Theo Lasser, Marcel Leutenegger, Rainer Leitgeb, Ramachandra Rao

We present a fast calculation of the electromagnetic field near the focus of an objective with a high numerical aperture (NA). Instead of direct integration, the vectorial Debye diffraction integral is evaluated with the fast Fourier transform for calculat ...

2006

Complex B-Splines

Michaël Unser, Thierry Blu

We propose a complex generalization of Schoenberg's cardinal splines. To this end, we go back to the Fourier domain definition of the B-splines and extend it to complex-valued degrees. We show that the resulting complex B-splines are piecewise modulated po ...

Elsevier2006

An Efficient Discretization of the Navier–Stokes Equations in an Axisymmetric Domain. Part 1: The Discrete Problem and its Numerical Analysis

Simone Deparis

Any solution of the Navier–Stokes equations in a three-dimensional axisymmetric domain admits a Fourier expansion with respect to the angular variable, and it can be noted that each Fourier coefficient satisfies a variational problem on the meridian domain ...

2006

Electromagnetic analysis of 2.5D structures in open layered media

This thesis presents a specialization of the integral equation (IE) method for the analysis of three-dimensional metallic and dielectric structures embedded in laterally unbounded (open) layered media. The method remains basically spatial but makes use of ...

EPFL2005

Moire patterns between aperiodic layers: quantitative analysis and synthesis

Isaac Amidror

Moire effects that occur in the superposition of aperiodic layers such as random dot screens are known as Glass patterns. Unlike classical moiré effects between periodic layers, which are periodically repeated throughout the superposition, a Glass p ...

Opt. Soc. America2003

Sampling of Periodic Signals: A Quantitative Error Analysis

Michaël Unser, Thierry Blu, Mathews Jacob

We present an exact expression for the

L _{ 2 }

error that occurs when one approximates a periodic signal in a basis of shifted and scaled versions of a generating function. This formulation is applicable to a wide variety of linear approximation schem ...

IEEE2002

Verification of the Fourier-enhanced 3D finite element Poisson solver of the gyrokinetic full-f code PICLS

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Coupling length of silicon-on-insulator directional couplers probed by Fourier-space imaging

Fast focus field calculations

Adaptive Sleep/Wake Classification Based on Cardiorespiratory Signals for Wearable Devices

The plenacoustic function and its applications

Fast focus field calculations

Complex B-Splines

An Efficient Discretization of the Navier–Stokes Equations in an Axisymmetric Domain. Part 1: The Discrete Problem and its Numerical Analysis

Electromagnetic analysis of 2.5D structures in open layered media

Moire patterns between aperiodic layers: quantitative analysis and synthesis

Sampling of Periodic Signals: A Quantitative Error Analysis

Adaptive Sleep/Wake Classification Based on Cardiorespiratory Signals for Wearable Devices

The plenacoustic function and its applications

Fast focus field calculations

Sampling of Periodic Signals: A Quantitative Error Analysis

Moire patterns between aperiodic layers: quantitative analysis and synthesis

An Efficient Discretization of the Navier–Stokes Equations in an Axisymmetric Domain. Part 1: The Discrete Problem and its Numerical Analysis

Electromagnetic analysis of 2.5D structures in open layered media

Coupling length of silicon-on-insulator directional couplers probed by Fourier-space imaging

Complex B-Splines

Fast focus field calculations