Regensburg 2016 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 26: Poster - Quanten Systems

DY 26.7: Poster

Dienstag, 8. März 2016, 18:15–21:00, Poster C

Whispering Gallery Modes in Graphene Billiards — •Guido Natura, Pia Stockschläder, and Martina Hentschel — Institut für Physik, Technische Universität Ilmenau. 98693 Ilmenau

The development of optical resonators became essential for the improvements of optical devices such as filters, sensors or lasers. A promising application are microcavities, which allow the trapping of light by means of internal reflection. Here we are considering graphene Billiards where the resonator geometry is created by a radially increasing potential bias on a graphene surface and allows the trapping of carriers inside [1]. These are assumed to behave as relativistic fermions in a finite domain as in the Neutrino Berry-Mondragon-Billiards [2]. The objective of this work is the invesitigation of whispering gallery modes in graphene Billiards and the study of a possible ray-wave-correspondence in the relativistic case.

[1] Yue Zhao, Jonathan Wyrick, Fabian D. Natterer, Joaquin F. Rodriguez-Nieva, Cyprian Lewandowski, Kenji Watanabe, Takashi Taniguchi, Leonid S. Levitov, Nikolai B. Zhitenev, and Joseph A. Stroscio. Creating and probing electron whispering-gallery modes in graphene. Science, 348(6235):672-675, 2015.

[2] M. V. Berry and R. J. Mondragon. Neutrino billiards: Time-reversal symmetry-breaking without magnetic fields. Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, 412(1842):53-74, 1987.