Concept

Mean free path

Related publications (47)

Bulk Fermi surface and electronic properties of Cu0.07Bi2Se3

The electronic properties of Cu0.07Bi2Se3 have been investigated using Shubnikov-de Haas and optical reflectance measurements. Quantum oscillations reveal a bulk, three-dimensional Fermi surface with anisotropy k(F)(c)/k(F)(ab) approximate to 2 and a modes ...

Amer Physical Soc2013

Dynamics of mobile coupled phase oscillators

Andrew Charles Oates

We study the transient synchronization dynamics of locally coupled phase oscillators moving on a one-dimensional lattice. Analysis of spatial phase correlation shows that mobility speeds up relaxation of spatial modes and leads to faster synchronization. W ...

2013

Time resolved three-dimensional acousto-optic imaging of thick scattering media

Salma Farahi

Acousto-optic imaging is based on light interaction with focused ultrasound in a scattering medium. Thanks to photorefractive holography combined with pulsed ultrasound, we perform a time-resolved detection of ultrasound-modulated photons in the therapeuti ...

2012

Ultra Low Temperature Susceptometer and Magnetometer

Julian Piatek

The first part of this thesis discusses technical details relating to measurements of magnetic properties at ultra low temperatures. The implementation of AC susceptibility at temperatures down to 30 mK is introduced and used as a platform to showcase sele ...

EPFL2012

Three-Dimensional Electron Realm in VSe2 by Soft-X-Ray Photoelectron Spectroscopy: Origin of Charge-Density Waves

Thorsten Schmitt, Vladimir N. Strocov, Helmuth Berger, Xiaoqiang Wang

The resolution of angle-resolved photoelectron spectroscopy (ARPES) in three-dimensional (3D) momentum k is fundamentally limited by ill defined surface-perpendicular wave vector k(perpendicular to) associated with the finite photoelectron mean free path. ...

Amer Physical Soc2012

ARPES Studies of Cuprate and Pnictide Superconductors

Elia Razzoli

Since the discovery of cuprate superconductors in 1986, the subject of high temperature superconductivity has triggered a lot of scientific activity. Despite enormous efforts, the origin of high-temperature superconductivity is still the subject of intense ...

EPFL2012

Use of webcams as tools for alignment and supervision of a Thomson scattering system in the near infrared

Basil Duval, Yanis Andrebe, Pierre Etienne, Roland Behn, Andreas Pitzschke

The alignment stability is a major concern for Thomson scattering systems. Even small angular deviations of the laser beams crossing the plasma lead to a loss of the calibration resulting in unreliable measurements of the electron density profile. For the ...

Elsevier2011

Study of scandium targets for production of monoenergetic neutron fields with energies below 100 keV

Vincent Pierre Lamirand

In order to develop reference low-energy monoenergetic neutron fields, the 45Sc(p,n) reaction is being studied within the framework of a scientific cooperation between NPL, PTB, IRMM and IRSN. The first study is dedicated to the selection of the most suita ...

Elsevier2010

Development of stencil lithography for nanopatterning and for electronic and biosensing applications

Oscar Vazquez Mena

This work presents analyses and developments in nanofabrication using stencil lithography and its application for electronics and biosensing. Metallic nanostructures are fabricated using stencil lithography studying the pattern transfer from the stencil to ...

EPFL2010

Signification of the phase function parameter gamma explored with a fractal distribution of scatterers

Christian Depeursinge, Pierre Marquet, Stéphane Chamot, Elena Migacheva

The optical properties within limited volumes of diffusive media can be probed by carrying spatially-resolved measurements of diffused light at short source-detector separation (typically one scattering mean free path). At such distance, analytical models ...

Optical Society of America2010

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