Comparison of two contrasting Metallic Terahertz waveguides

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dc.contributor.advisor Leonhardt, R en Izett, Keith en 2011-08-31T21:46:14Z en 2011 en
dc.identifier.uri en
dc.description Full text is available to authenticated members of The University of Auckland only. en
dc.description.abstract The need for low-loss, low-dispersion waveguides for THz radiation has lead to the development of several types of metallic waveguide because of the high conductivity of metals at THz frequencies. In this thesis I examine two of these designs. The first is a hollow silver tube, the second two parallel copper wires. The behaviour of the first can be described by the well-known microwave theory but the behaviour of the second guide is still poorly understood. Sample sets of both were produced in several lengths, and the wire-edge separation was also varied in the case of the two-wire design. The two sample sets were characterized by THz-TDS and the results compared for losses, coupling factors and dispersion. The results for the tubes compared well to the theory displaying a predictable cutoff frequency, large dispersion and large losses. The two-wire design displays negligible dispersion as predicted for a two conductor transmission line by the microwave theory. The measured losses propagation losses at frequencies below 0:6 compared well to predictions while losses at higher frequencies could not be readily explained. en
dc.relation.ispartof Masters Thesis - University of Auckland en
dc.rights Restricted Item. Available to authenticated members of The University of Auckland. en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. en
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dc.title Comparison of two contrasting Metallic Terahertz waveguides en
dc.type Thesis en The University of Auckland en Masters en
dc.rights.holder Copyright: The author en
pubs.elements-id 221697 en
pubs.record-created-at-source-date 2011-09-01 en

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