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Birck and NCN Publications

Antennas; fluorescence; lenses; silver; surface enhanced Raman scattering

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Full-Text Articles in Nanoscience and Nanotechnology

Translation Of Nanoantenna Hot Spots By A Metal-Dielectric Composite Superlens, Zhengtong Liu, Mark D. Thoreson, Alexander V. Kildishev, V. M. Shalaev Jul 2009

Translation Of Nanoantenna Hot Spots By A Metal-Dielectric Composite Superlens, Zhengtong Liu, Mark D. Thoreson, Alexander V. Kildishev, V. M. Shalaev

Birck and NCN Publications

We employ numerical simulations to show that highly localized, enhanced electromagnetic fields, also known as "hot spots," produced by a periodic array of silver nanoantennas can be spatially translated to the other side of a metal-dielectric composite superlens. The proposed translation of the hot spots enables surface-enhanced optical spectroscopy without the undesirable contact of molecules with metal, and thus it broadens and reinforces the potential applications of sensing based on field-enhanced fluorescence and surface-enhanced Raman scattering.


Translation Of Nanoantenna Hot Spots By A Metal-Dielectric Composite Superlens, Zhengtong Liu, Mark D. Thoreson, Alexander V. Kildishev, V. M. Shalaev Jul 2009

Translation Of Nanoantenna Hot Spots By A Metal-Dielectric Composite Superlens, Zhengtong Liu, Mark D. Thoreson, Alexander V. Kildishev, V. M. Shalaev

Birck and NCN Publications

We employ numerical simulations to show that highly localized, enhanced electromagnetic fields, also known as "hot spots," produced by a periodic array of silver nanoantennas can be spatially translated to the other side of a metal-dielectric composite superlens. The proposed translation of the hot spots enables surface-enhanced optical spectroscopy without the undesirable contact of molecules with metal, and thus it broadens and reinforces the potential applications of sensing based on field-enhanced fluorescence and surface-enhanced Raman scattering.