Optical transparency by detuned electrical dipoles

Details Optical transparency by detuned electrical dipoles Optical transparency by detuned electrical dipoles

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011njph...13b3034b&link_type=abstract

New Journal of Physics, Volume 13, Issue 2, pp. 023034 (2011).

Physics

8

Scientific paper

We demonstrate that optical transparency can be realized with plasmonic metamaterials using unit cells consisting of detuned electrical dipoles (DED), thereby mimicking the dressed-state picture of the electromagnetically induced transparency (EIT) in atomic physics. Theoretically analyzing the DED cells with two and three different silver ellipsoids, we show the possibility of reaching a >=10 times decrease in group velocity and a propagation loss of <=1 dB per cell within the optical wavelength range of 625-640 nm. Similar configurations are realized with lithographically fabricated gold nanorods placed on a glass substrate and subsequently covered with a ~15-μm-thick polymer layer, featuring EIT-like transmission spectra with transparency windows at wavelengths of ~850 nm.

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