Studies of plasmonic hot-spot translation by a metal-dielectric layered superlens

Mark D. Thoreson; Rasmus B. Nielsen; Paul R. West; Arian Kriesch; Zhengtong Liu; Jieran Fang; Alexander V. Kildishev; Ulf Peschel; Vladimir M. Shalaev; Alexandra Boltasseva

doi:10.1117/12.894225

9 September 2011 Studies of plasmonic hot-spot translation by a metal-dielectric layered superlens

Mark D. Thoreson, Rasmus B. Nielsen, Paul R. West, Arian Kriesch, Zhengtong Liu, Jieran Fang, Alexander V. Kildishev, Ulf Peschel, Vladimir M. Shalaev, Alexandra Boltasseva

Author Affiliations +

Proceedings Volume 8093, Metamaterials: Fundamentals and Applications IV; 80931J (2011) https://doi.org/10.1117/12.894225
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

We have studied the ability of a lamellar near-field superlens to transfer an enhanced electromagnetic field to the far side of the lens. In this work, we have experimentally and numerically investigated superlensing in the visible range. By using the resonant hot-spot field enhancements from optical nanoantennas as sources, we investigated the translation of these sources to the far side of a layered silver-silica superlens operating in the canalization regime. Using near-field scanning optical microscopy (NSOM), we have observed evidence of superlens-enabled enhanced-field translation at a wavelength of about 680 nm. Specifically, we discuss our recent experimental and simulation results on the translation of hot spots using a silver-silica layered superlens design. We compare the experimental results with our numerical simulations and discuss the perspectives and limitations of our approach.

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Mark D. Thoreson, Rasmus B. Nielsen, Paul R. West, Arian Kriesch, Zhengtong Liu, Jieran Fang, Alexander V. Kildishev, Ulf Peschel, Vladimir M. Shalaev, and Alexandra Boltasseva "Studies of plasmonic hot-spot translation by a metal-dielectric layered superlens", Proc. SPIE 8093, Metamaterials: Fundamentals and Applications IV, 80931J (9 September 2011); https://doi.org/10.1117/12.894225

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