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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 4 — Apr. 1, 2011
  • pp: 917–921

High-refractive-index composite materials for terahertz waveguides: trade-off between index contrast and absorption loss

Bora Ung, Alexandre Dupuis, Karen Stoeffler, Charles Dubois, and Maksim Skorobogatiy  »View Author Affiliations


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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