Concept

Filtre (optique)

Publications associées (297)

Femtosecond photoelectron and photoion spectrometer with vacuum ultraviolet probe pulses

We describe a femtosecond photoelectron and photoion spectroscopy setup using a simple, novel way to produce a vacuum ultraviolet (VUV) probe pulse. We isolate the femtosecond VUV pulse from a high harmonic continuum by using the bandpass characteristics o ...

Elsevier2014

Low Energy Collisions in Merged Neutral Molecular Beams

Benjamin Bertsche

Within this thesis two experiments will be described. In the first experiment a velocity filter was used to obtain a beam of polar molecules (ND3) with a translational temperature of less than 5K. For the first time the dynamics of individual rotational st ...

EPFL2014

The effects of ageing on visual spatiotemporal processing

Michael Herzog

In a previous study, we showed that visual spatiotemporal processing deteriorates with healthy ageing (Roinishvili et al, 2011, Vision Research, 51(4):417-23). Here, we used backward masking to investigate the underlying mechanisms. First, thirty-three old ...

Pion Ltd2014

A Monocular Pose Estimation System based on Infrared LEDs

Davide Scaramuzza

We present an accurate, efficient, and robust pose estimation system based on infrared LEDs. They are mounted on a target object and are observed by a camera that is equipped with an infrared-pass filter. The correspondences between LEDs and image detectio ...

2014

Accelerated Escherichia coli inactivation in the dark on uniform copper flexible surfaces

César Pulgarin, Juan Kiwi, Michaël Bensimon, Sami Rtimi, Rosendo Sanjines

The bacterial inactivation of Escherichia coli on Cu/CuO-polyester surfaces prepared by direct current magnetron sputtering was investigated in the dark and under actinic light (360nm

American Vacuum Society2014

Panchromatic light harvesting by dye- and quantum dot-sensitized solar cells

Michael Graetzel, Jun Ho Yum, Robin Humphry-Baker, Yongjoo Kim

A PbS:Hg quantum dots-sensitized solar cell (QDSC) combined with a dye-sensitized solar cell (DSC) to harvest panchromatic solar spectrum from the visible light to the near IR is demonstrated. We use the filter to split the solar energy and access the tota ...

Pergamon-Elsevier Science Ltd2014

Fusion of Optical Flow and Inertial Measurements for Robust Egomotion Estimation

Roland Siegwart, Marco Hutter

In this paper we present a method for fusing optical flow and inertial measurements. To this end, we derive a novel visual error term which is better suited than the standard continuous epipolar constraint for extracting the information contained in the op ...

2014

On the Influence of Spatial Dispersion on the Performance of Graphene-Based Plasmonic Devices

Juan Sebastian Gomez Diaz

We investigate the effect of spatial dispersion phenomenon on the performance of graphene-based plasmonic devices at terahertz (THz). For this purpose, two different components, namely a phase shifter and a low-pass filter, are taken from the literature, i ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Simple merging technique for improving resolution in qualitative single image phase contrast tomography

Peter Modregger, Zheng Wang, Marco Stampanoni

For dynamic samples and/or for simple ease-of-use experiments, single-image phase contrast tomography is a very effective method for the 3D visualization of materials which would otherwise be indiscernible in attenuation based x-ray imaging. With binary sa ...

Optical Society of America2014

Electrical detection of spin hyperpolarization in InP

Jean-Philippe Ansermet, Christian Caspers

The electrical detection of surface spin polarization in Indium Phosphide (InP) is demonstrated. Using a planar four-terminal architecture on top of semi-insulating Fe: InP (001) wafers, optical orientation is separated from electrical detection. Spin filt ...

Amer Inst Physics2014

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