Midinfrared resonant magnetic nanostructures exhibiting a negative permeability

We experimentally demonstrate the first midinfrared (mid-IR) resonant magnetic nanostructures exhibiting a strong magnetic response corresponding to a negative permeability. This result is an important step toward the achievement of a negative refractive index in the IR. The possibility of extending...

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Bibliographic Details
Published in:Physical review letters 2005-01, Vol.94 (3), p.037402.1-037402.4, Article 037402
Main Authors: SHUANG ZHANG, WENJUN FAN, MINHAS, B. K, FRAUENGLASS, Andrew, MALLOY, K. J, BRUECK, S. R. J
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Optical properties of nanoscale materials and structures
Physics
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Summary:We experimentally demonstrate the first midinfrared (mid-IR) resonant magnetic nanostructures exhibiting a strong magnetic response corresponding to a negative permeability. This result is an important step toward the achievement of a negative refractive index in the IR. The possibility of extending negative permeability to higher frequencies is discussed; a structure with a negative effective permeability at a near-IR resonance frequency of 230 THz (1.3 microm) is proposed.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.94.037402