期刊
APPLIED PHYSICS LETTERS
卷 101, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4732793
关键词
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资金
- A*STAR SERC Grant MetaMaterial - Nano Plasmonics [092 1540098]
- ONR-MURI [N00014-10-1-0942]
- AFOSR-MURI [FA9550-10-1-0264]
- ARO-MURI [50342-PH-MUR]
- NSF Division of Materials Reserach [1120923]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1120923] Funding Source: National Science Foundation
We demonstrate near field enhancement generation in silver nanoantenna-superlens systems via numerical modeling. Using near-field interference and global optimization algorithms, we can design nanoantenna-superlens systems with mismatched permittivities, whose performance can match those with matched permittivities. The systems studied here may find broad applications in the fields of sensing, such as field-enhanced fluorescence and surface-enhanced Raman scattering, and the methodology used here can be applied to the designing and optimization of other devices, such as two-dimensional near field focusing lens. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732793]
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