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Negative effective permeability and left-handed materials at optical frequencies
Departmental Papers (ESE)
  • Andrea Alù, University of Pennsylvania
  • Alessandro Salandrino, University of Pennsylvania
  • Nader Engheta, University of Pennsylvania
We present here the design of nano-inclusions made of properly arranged collections of plasmonic metallic nano-particles that may exhibit a resonant magnetic dipole collective response in the visible domain. When such inclusions are embedded in a host medium, they may provide metamaterials with negative effective permeability at optical frequencies. We also show how the same inclusions may provide resonant electric dipole response and, when combining the two effects at the same frequencies, left-handed materials with both negative effective permitivity and permeability may be synthesized in the optical domain with potential applications for imaging and nano-optics applications.
Document Type
Journal Article
Date of this Version
Copyright 2006 Optical Society of America, Inc. Postprint version. Published in Optics Express, Volume 14, Issue 4, February 20, 2006, pages 1557-1567.
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(Also indexed in the Virtual Journal of Nanoscience and Technology Volume 13, Issue 19, May 15, 2006)

Citation Information
Andrea Alù, Alessandro Salandrino and Nader Engheta. "Negative effective permeability and left-handed materials at optical frequencies" (2006)
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