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A periodic porous‐nanostructured left‐handed material slab at optical frequencies
Author(s) -
Chen P.Y.,
Wu S.C.
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23022
Subject(s) - slab , negative refraction , refractive index , optics , microwave , polarization (electrochemistry) , metamaterial , electric field , dielectric , porosity , physics , materials science , optoelectronics , chemistry , geophysics , quantum mechanics , composite material
We have proposed and theoretically investigated a left‐handed material (LHM) slab composed of porous‐nanostructed metal‐dielectric‐metal (MDM) networks for realizing negative refraction index at optical frequencies. In our design, whatever the polarization direction, provided that the electric field vector of incident EM wave is parallel to the metallic network, can “see” an equivalent LHM slab due to the symmetry and periodicity of the porous arrays. Another point needed to be highlighted is that by adjusting the periodicity of the porous arrays, a broad band of negative refraction index can be obtained. This shed the bright light on realizing negative refraction index for nanooptics and imaging applications. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 216–220, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23022