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Proceedings Paper

Finite element characterisation of terahertz quantum cascade laser waveguides
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Paper Abstract

Compact Quantum Cascade Laser waveguides have been analyzed using the full-vectorial finite element method. Modal intensity profiles, detailed power confinements and loss factors have been characterized for waveguides based on GaSb/AlGaSb multiple quantum well structures. Variations in these key parameters were also further investigated whilst varying the semiconductor doping concentration. Higher order modes having a low propagation loss were also shown.

Paper Details

Date Published: 17 February 2009
PDF: 10 pages
Proc. SPIE 7215, Terahertz Technology and Applications II, 72150M (17 February 2009); doi: 10.1117/12.807930
Show Author Affiliations
H. Tanvir, City Univ. London (United Kingdom)
B. M. A. Rahman, City Univ. London (United Kingdom)
C. Themistos, City Univ. London (United Kingdom)
N. Kejalakshmy, City Univ. London (United Kingdom)
T. Chattppaddhaye, Vivsa-Bharati Univ. (India)
K. T. V. Grattan, City Univ. London (United Kingdom)

Published in SPIE Proceedings Vol. 7215:
Terahertz Technology and Applications II
Kurt J. Linden; Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)

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