City Research Online

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.

Publication Type:	Article
Additional Information:	Rahman, B. M., Markides, C., Uthman, M., Quadir, A., Kejalakshmy, N. & Themistos, C. (2014). Characterization of low-loss waveguides and devices for terahertz radiation. Optical Engineering (OE), 53(3), 031210, Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/1.OE.53.3.031210
Publisher Keywords:	terahertz waveguides; terahertz devices; finite element method; finite difference time domain
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Departments:	School of Science & Technology > Engineering
SWORD Depositor:	Symplectic Administrator

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