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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 8 — Apr. 14, 2008
  • pp: 5252–5260

Triangular metal wedges for subwavelength plasmon-polariton guiding at telecom wavelengths

Alexandra Boltasseva, Valentyn S. Volkov, Rasmus B. Nielsen, Esteban Moreno, Sergio G. Rodrigo, and Sergey I. Bozhevolnyi  »View Author Affiliations


Optics Express, Vol. 16, Issue 8, pp. 5252-5260 (2008)
http://dx.doi.org/10.1364/OE.16.005252


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Abstract

We report on subwavelength plasmon-polariton guiding by triangular metal wedges at telecom wavelengths. A high-quality fabrication procedure for making gold wedge waveguides, which is also mass-production compatible offering large-scale parallel fabrication of plasmonic components, is developed. Using scanning near-field optical imaging at the wavelengths in the range of 1.43–1.52 µm, we demonstrate low-loss (propagation length ~120 µm) and well-confined (mode width ≅1.3 µm) wedge plasmon-polariton guiding along triangular 6-µm-high and 70.5°-angle gold wedges. Experimental observations are consistent with numerical simulations performed with the multiple multipole and finite difference time domain methods.

© 2008 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optics at Surfaces

History
Original Manuscript: January 29, 2008
Revised Manuscript: March 12, 2008
Manuscript Accepted: March 13, 2008
Published: April 1, 2008

Virtual Issues
Vol. 3, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Alexandra Boltasseva, Valentyn S. Volkov, Rasmus B. Nielsen, Esteban Moreno, Sergio G. Rodrigo, and Sergey I. Bozhevolnyi, "Triangular metal wedges for subwavelength plasmon-polariton guiding at telecom wavelengths," Opt. Express 16, 5252-5260 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-8-5252


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