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Advances in Optical Technologies
Volume 2011 (2011), Article ID 314952, 8 pages
http://dx.doi.org/10.1155/2011/314952
Review Article

Surface-Emitting Metal Nanocavity Lasers

Department of Electrical Engineering, Eindhoven University of Technology, Postbus 513, 5600 MB Eindhoven, The Netherlands

Received 6 June 2011; Accepted 9 July 2011

Academic Editor: Krassimir Panajotov

Copyright © 2011 Martin T. Hill and Milan J. H. Marell. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

There has been considerable interest in metallic nanolasers recently and some forms of these devices constructed from semiconductor pillars can be considered as surface-emitting lasers. We compare two different realized versions of these nanopillar devices, one with a trapped cutoff mode in the pillar, another with a mode that propagates along the pillar. For the cutoff mode devices we introduce a method to improve the output beam characteristics and look at some of the challenges in improving such devices.