Tunable plasmonic crystals for edge magnetoplasmons of a two-dimensional electron system.

Autor: Muravev VM; Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany., Fortunatov AA, Kukushkin IV, Smet JH, Dietsche W, von Klitzing K
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2008 Nov 21; Vol. 101 (21), pp. 216801. Date of Electronic Publication: 2008 Nov 17.
DOI: 10.1103/PhysRevLett.101.216801
Abstrakt: Plasmonic crystal effects analogous to photonic crystal phenomena such as zone folding and gap opening were observed for edge magnetoplasmons in a two-dimensional electron system with a periodically corrugated boundary at microwave frequencies. Magnetic field dependent photovoltage data provide unequivocal evidence for Bragg reflection. Band gaps up to fifth order were observed. These gaps were investigated as a function of the electron density, the magnetic field, and the periodicity to demonstrate the tunability of the dispersive properties of these plasmonic crystals.
Databáze: MEDLINE