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HAIT Journal of Science and Engineering Volume 1, Issue 1, pp. 130-151 © 2004 Holon Academic Institute of Technology | ||||||
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Infrared absorption in quantum crossbars
Igor Kuzmenko and Sergey Gredeskul*
Department of Physics, Ben-Gurion University of the Negev, | Beer-Sheva 84105, Israel *Corresponding author: sergeyg@bgumail.bgu.ac.il Received 1 December 2003
| Double quantum crossbars (QCB) is a superlattice formed by two crossed interacting arrays of metallic nanotubes or quantum wires. The system possesses the Luttinger liquid (LL) fixed point, and a rich Bose-type excitation spectrum (plasmon modes). QCB plasmons may be involved in resonance diffraction of incident electromagnetic waves and in optical absorption in the infrared (IR) part of the spectrum. The absorption of external electric field in QCB strongly depends on the direction of the wave vector of an incident wave. As a result two types of 1D → 2D dimensional crossover with varying angle of an incident wave or its frequency can be observed.
___________________ | Presented at Russian-Israeli Conference Frontiers in Condensed Matter Physics Shoresh, Israel, 19-24 October 2003 |