Surface plasmon waveguides with gradually doped or NiAl intermetallic compound buried contact for terahertz quantum cascade lasers

Indjin, D., Ikonic, Z., Harrison, P. and Kelsall, R.W. (2003) Surface plasmon waveguides with gradually doped or NiAl intermetallic compound buried contact for terahertz quantum cascade lasers. Journal of Applied Physics, 94 (5). pp. 3249-3252. ISSN 1089-7550

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Abstract

mproved designs of surface plasmon waveguides for use in GaAs/AlGaAs terahertz quantum cascade lasers are presented. Modal losses and confinement factors are calculated for TM modes in metal-variably doped multilayer semiconductor and metal-intermetallic compound layer clad structures and compared with those obtained in recently realized metal-highly doped semiconductor clad layer structures. Considerable improvements of the mode confinement factors are predicted, and guidelines for choosing the confinement layer parameters are given.

Item Type:	Article
Copyright, Publisher and Additional Information:	Copyright © 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. This is an author produced version of a paper published in Journal of Applied Physics.
Academic Units:	The University of Leeds > Faculty of Engineering (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Microwaves and Photonics (Leeds)
Depositing User:	Repository Officer
Date Deposited:	01 Nov 2006
Last Modified:	08 Feb 2013 17:02
Published Version:	http://link.aip.org/link/JAPIAU/v94/p3249
Status:	Published
Refereed:	Yes
Identification Number:	10.1063/1.1599630
URI:	http://eprints.whiterose.ac.uk/id/eprint/1105

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