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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 49, Iss. 7 — Mar. 1, 2010
  • pp: A18–A22

Focusing surface waves with an inhomogeneous metamaterial lens

Marco A. Escobar, Matthieu Berthomé, Changbao Ma, and Zhaowei Liu  »View Author Affiliations


Applied Optics, Vol. 49, Issue 7, pp. A18-A22 (2010)
http://dx.doi.org/10.1364/AO.49.000A18


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Abstract

We propose a new type of surface wave lens that is made of a circular in-plane inhomogeneous metamaterial slab and numerically demonstrate its capability to focus surface waves at optical frequencies. This approach can achieve a smaller focal spot size than the previously demonstrated Ag plasmonic lens. The use of inhomogeneous metamaterials is to decrease the high losses that are usually associated with metamaterials that support large surface k vectors by reducing the propagation distance in high loss metamaterials.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves
(160.3918) Materials : Metamaterials
(250.5403) Optoelectronics : Plasmonics

History
Original Manuscript: August 3, 2009
Revised Manuscript: October 20, 2009
Manuscript Accepted: October 21, 2009
Published: November 10, 2009

Citation
Marco A. Escobar, Matthieu Berthomé, Changbao Ma, and Zhaowei Liu, "Focusing surface waves with an inhomogeneous metamaterial lens," Appl. Opt. 49, A18-A22 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-7-A18


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