Phys. Rev. Lett. 100, 113901 (2008) [4 pages]Multifrequency Optical Invisibility Cloak with Layered Plasmonic ShellsReceived 6 August 2007; revised 12 December 2007; published 18 March 2008 Here, we theoretically suggest the possibility of employing a multilayered plasmonic shell as a cloak for reducing the total scattering cross section of a particle, simultaneously at different frequencies in the optical domain. By exploiting the frequency dispersion of plasmonic materials and their inherent negative polarizability, it is shown, theoretically and with numerical simulations, how covering a dielectric or conducting object of a certain size with this multilayered cloak may reduce its “visibility” by several orders of magnitude simultaneously at multiple frequencies. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.113901
DOI:
10.1103/PhysRevLett.100.113901
PACS:
42.70.−a, 33.20.Fb, 42.50.Gy, 42.79.−e
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