Abstract
Small diameter hollow-core terahertz waveguide designs based on inhibited
coupling hollow-core optical fibers are investigated. Rather than scaling up
the entire structure, only resonant features in the cladding were scaled,
shifting the transmission windows to longer wavelengths but not increasing
the overall diameter of the waveguide by the same factor. Trade-offs between
structure size and loss using this approach are quantified through numerical
simulations. An idealized waveguide consisting of a simplified capillary
structure is also investigated for comparison.
© 2011 IEEE
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