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Optical Engineering

Characterization of low-loss waveguides and devices for terahertz radiation
Author(s): B. M. A. Rahman; Christos Markides; Mohammad Uthman; Anita Quadir; Namassivaye Kejalakshmy; Christos Themistos
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Paper Abstract

A rigorous full-vectorial modal solution approach based on the finite element method is used to find the propagation properties of terahertz (THz) waveguides, such as photonic crystal fibers, quantum cascaded lasers, plasmonic waveguides, power splitters, and narrow-band filters. Design approaches to reduce the modal loss due to the material and leakage loss in photonic crystal fibers and in metal-coated hollow-glass plasmonic waveguides have also been considered. The plasmonic confinement and gain threshold of quantum cascaded lasers used as THz sources and the chromatic dispersion in plasmonic waveguides are also presented.

Paper Details

Date Published: 10 March 2014
PDF: 7 pages
Opt. Eng. 53(3) 031210 doi: 10.1117/1.OE.53.3.031210
Published in: Optical Engineering Volume 53, Issue 3
Show Author Affiliations
B. M. A. Rahman, City Univ. London (United Kingdom)
Christos Markides, Frederick Univ. (Cyprus)
Mohammad Uthman, City Univ. London (United Kingdom)
Anita Quadir, City Univ. London (United Kingdom)
Namassivaye Kejalakshmy, City Univ. London (United Kingdom)
Christos Themistos, Frederick Univ. (Cyprus)

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