Regensburg 2010 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 63: Plasmonics and Nanooptics V
O 63.9: Vortrag
Donnerstag, 25. März 2010, 12:30–12:45, H32
Optimally Shaped Laser Pulses for Hybrid Metal-Semiconductor Nanostructures — •Matthias Reichelt1, Torsten Meier1, Andrea Walther2, and Michael Dellnitz2 — 1Department Physik, Universität Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany — 2Institut für Mathematik, Universität Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
A hybrid nanostructure which consists of a metal aperture and a
semiconductor quantum wire is studied theoretically. [1] It is shown
that one can concentrate the optically excited electron density at an
arbitray position for a given time using sophistically shaped laser
pulses. To obtain the optimized laser field a genetic algorithm [2]
and a more rigorous mathematical approach [3] are applied. Full
three-dimensional finite-difference time-domain calculations [4]
confirm the predicted spatiotemporal control.
[1] M. Reichelt and T. Meier, Opt. Lett. 34, 2900 (2009).
[2] A.E. Eiben and J.E. Smith,
Introduction to Evolutionary Computing, Springer (2003)
[3] S. Sertl and M. Dellnitz, Journal of Global Optimization 34, 569-587, (2006).
[4] A. Taflove, Advances in Computational Electrodynamics,
Artech House, (1998).
This document was translated from LATEX by HEVEA.