Achtung:

Sie haben Javascript deaktiviert!
Sie haben versucht eine Funktion zu nutzen, die nur mit Javascript möglich ist. Um sämtliche Funktionalitäten unserer Internetseite zu nutzen, aktivieren Sie bitte Javascript in Ihrem Browser.

Foto (Matthias Groppe): Holographie-Apparatur von Herrn Dr. Andreas Redler

Foto: Foto (Matthias Groppe): Holographie-Apparatur von Herrn Dr. Andreas Redler

Donnerstag, 23.11.2017 | 16.15 - 17.00 Uhr | Hörsaal A1

Optical metasurfaces: from planar to conformable optics

Dr. Patrice Genevet

University of Nice Sophia Antipolis / CNRS-CRHEA, France 

Abrupt modifications of the fields across an interface can be engineered by depositing an array of sub- wavelength resonators specifically tailored to address local amplitude, phase and polarization changes [1]. Physically, ultrathin nanostructure arrays, called “metasurfaces”, control light by engineering artificial boundary conditions of Maxwell’s equations. Metasurfaces have been implemented to obtain various sorts of optical functionalities, ranging from the basic control of the transmission and reflection of light, to the control of the radiation patterns for comprehensive wavefront engineering [2]. Here, we review the recent works in this field and explain which physical mechanisms are utilized for the design of efficient planar optical components. We will present our results on free-standing semiconductor metasurfaces and conclude with the concept of conformal boundary optics: an analytical method based on first-principle derivation to engineer transmission and reflection at free-form interfaces [3].


[1] Yu, Genevet,et al., Science 334,333 (2011)
[2] Genevet, et al. Optica 4 (1), 139-152 (2017)
[3] Han, Wong, Molardi & Genevet, PRA 94, 023820 (2016)

Abstract als PDF

Veranstaltungen

Prof. Thomas Frauenheim

Universität Bremen 

The new release of DFTB+ as a density-functional (DFT)-based approach, combining DFT- accuracy and Tight-Binding (TB) efficiency, is reported;...

Donnerstag, 11.01.2018 | 16.15 - 17.00 Uhr

Dr. Ursula Wurstbauer

WSI - Technische Universität München

The (re-)discovery of graphene in 2004 by Geim and Novoselov [1] was hour of birth to the vibrant interdisciplinary research area of 2D...

Donnerstag, 25.01.2018 | 16.15 - 17.00 Uhr

Prof. Dr. Elmar Junker

Hochschule Rosenheim 

Physikvorlesung 2.0

Aktivierende und konzeptorientierte Lehre in heterogenen Gruppen

Viele Lehrende treiben die folgenden Fragen um:

  • Wie kann der...
Donnerstag, 01.02.2018 | 16.15 - 17.00 Uhr

Prof. Dr. Thomas Hellweg

Universität Bielefeld 

Gemeinsames  Physikalisch- Chemisches Kolloquium 

Smart microgels and microgel nanoparticle hybrids: Properties, characterization, and potential...

Die Universität der Informationsgesellschaft