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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 21 — Oct. 13, 2008
  • pp: 16404–16409

Sub-diffraction negative and positive index modes in mid-infrared waveguides

Anthony J. Hoffman, Viktor A. Podolskiy, Deborah L. Sivco, and Claire Gmachl  »View Author Affiliations


Optics Express, Vol. 16, Issue 21, pp. 16404-16409 (2008)
http://dx.doi.org/10.1364/OE.16.016404


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Abstract

We characterize a strongly anisotropic waveguide consisting of alternating 80 nm layers of n+-InGaAs and i-AlInAs on InP substrate. A strong increase in the transverse magnetic (TM) reflection at λ=8.4 µm corresponds to a characteristic low-order mode cutoff for the left-handed waveguide. The subsequent decrease of TM reflection at λ=11.5 µm represents the onset of right-handed no-cutoff light guiding. Good qualitative agreement is found when the experimental results are compared to finite element and transfer-matrix frequency domain simulations.

© 2008 Optical Society of America

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(160.6000) Materials : Semiconductor materials
(230.7370) Optical devices : Waveguides
(160.3918) Materials : Metamaterials

ToC Category:
Metamaterials

History
Original Manuscript: August 29, 2008
Revised Manuscript: September 25, 2008
Manuscript Accepted: September 25, 2008
Published: September 29, 2008

Citation
Anthony J. Hoffman, Viktor A. Podolskiy, Deborah L. Sivco, and Claire Gmachl, "Sub-diffraction negative and positive index modes in mid-infrared waveguides," Opt. Express 16, 16404-16409 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-21-16404


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