Concept
Halo (phénomène optique)
Publications associées (9)
Nonlinear optical diode effect in a magnetic Weyl semimetal
Philip Johannes Walter Moll, Chunyu Guo, Hao Yang
Diode effects are of great interest for both fundamental physics and modern technologies. Electrical diode effects (nonreciprocal transport) have been observed in Weyl systems. Optical diode effects arising from the Weyl fermions have been theoretically co ...
Nature Portfolio2024ACACIA: a new method to produce on-the-fly merger trees in the RAMSES code
The implementation of ACACIA, a new algorithm to generate dark matter halo merger trees with the Adaptive Mesh Refinement code RAMSES, is presented. The algorithm is fully parallel and based on the Message Passing Interface. As opposed to most available me ...
OXFORD UNIV PRESS2022Réutilisation des constructions en béton
Ce projet se rapporte au cas d’étude du site du « Strandboden » à Bienne et plus particulièrement au « Pont de Neptune » qui permet la traversée du port de Neptune. Le « Pont de Neptune » est un pont arc en béton armé construit entre 1928 et 1929 qui perme ...
2021Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes
Cosmological simulations predict that galaxies are embedded into triaxial dark matter haloes, which appear approximately elliptical in projection. Weak gravitational lensing allows us to constrain these halo shapes and thereby test the nature of dark matte ...
EDP SCIENCES S A2021Looking for dark matter trails in colliding galaxy clusters
Jean-Paul Richard Kneib, David Richard Harvey, Richard Massey
If dark matter interacts, even weakly, via non-gravitational forces, simulations predict that it will be preferentially scattered towards the trailing edge of the halo during collisions between galaxy clusters. This will temporarily create a non-symmetric ...
Oxford Univ Press2017Correction of a Depth-Dependent Lateral Distortion in 3D Super-Resolution Imaging
Suliana Manley, Kyle Michael Douglass, Seamus John Holden, Lina Carlini
Three-dimensional (3D) localization-based super-resolution microscopy (SR) requires correction of aberrations to accurately represent 3D structure. Here we show how a depth-dependent lateral shift in the apparent position of a fluorescent point source, whi ...
Public Library of Science2015Near Field Investigation of Bloch Surface Based Platform for 2D Integrated Optics
Hans Peter Herzig, Elsie Barakat, Richa Dubey
Dielectric multilayers sustaining Bloch surface waves (BSWs) are considered as a novel platform for two dimensional (2D) integrated optics. The dielectric platform is exploited to manipulate surface waves by patterning 2D dielectric optical components on t ...
2015On the Characteristics of Highly Confined Light Fields
The Investigation of highly confined light fields created by different mechanisms, such as refraction, diffraction, and scattering, are the main subject of this thesis. We distinguish a specific scattering phenomenon of dielectric microspheres from general ...
EPFL2011Artifical compound eyes - Different concepts and their application to ultra flat image acquisition sensors
Hans Peter Herzig, Toralf Scharf
Two different approaches for ultra flat image acquisition sensors on the basis of artificial compound eyes are examined. In apposition optics the image reconstruction is based on moiré- or static sampling while the superposition eye approach produces an ov ...
2004