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Proceedings Paper

Broadband, tunable super-lenses in the visible region of the electromagnetic spectrum with metallodielectric stacks (MDS)
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Paper Abstract

We compare two designs of metallodielectric stacks (MDS) based on Ag/GaP and Au/GaP, and calculate their superresolving bandwidths. The super-resolving bandwidth of the Ag/GaP design is (520nm-560nm), while that of Au/GaP is (630nm-660nm). We evaluate these two designs in their ability to resolve two 20nm wide apertures separated by a center-to-center distance of 80nm. We also compare two numerical techniques used to study these systems, namely the transfer matrix method (TMM) and the finite element method (FEM). The TMM is simpler than more numerically demanding FEM technique but FEM is more robust for determining super-resolution in most cases. Finally we discuss the practical limitations of our super-resolving imaging devices in resolving objects that are much smaller than the incident wavelength.

Paper Details

Date Published: 26 September 2011
PDF: 8 pages
Proc. SPIE 8096, Plasmonics: Metallic Nanostructures and Their Optical Properties IX, 80963E (26 September 2011); doi: 10.1117/12.894164
Show Author Affiliations
Nkorni Katte, Univ. of Dayton (United States)
Jian Gao, Univ. of Dayton (United States)
Andrew Sarangan, Univ. of Dayton (United States)
Joseph Haus, Univ. of Dayton (United States)
Michael Scalora, U.S. Army Aviation and Missile Command (United States)
Rachel Jakubiak, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 8096:
Plasmonics: Metallic Nanostructures and Their Optical Properties IX
Mark I. Stockman, Editor(s)

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