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High-refractive-index composite materials for terahertz waveguides: trade-off between index contrast and absorption loss |
JOSA B, Vol. 28, Issue 4, pp. 917-921 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000917
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Abstract
We fabricate polymer compounds from titania-doped polyethylene and characterize their linear optical properties by terahertz time domain spectroscopy. We show that the high concentration of dopants not only enhances the refractive index of the composite material, but it also can dramatically raise its absorption coefficient. We demonstrate that the optimal design of photonic bandgap fibers based on lossy composites depends on finding a compromise between the high-refractive-index (hRI) contrast and corresponding material losses. Finally, fabrication and transmission measurements for the hRI contrast hollow-core Bragg fiber are reported and compared with simulations.
© 2011 Optical Society of America
OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2290) Fiber optics and optical communications : Fiber materials
(230.1480) Optical devices : Bragg reflectors
(040.2235) Detectors : Far infrared or terahertz
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: September 2, 2010
Revised Manuscript: February 14, 2011
Manuscript Accepted: February 14, 2011
Published: March 29, 2011
Citation
Bora Ung, Alexandre Dupuis, Karen Stoeffler, Charles Dubois, and Maksim Skorobogatiy, "High-refractive-index composite materials for terahertz waveguides: trade-off between index contrast and absorption loss," J. Opt. Soc. Am. B 28, 917-921 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-4-917
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