Localized plasmon assisted structured illumination microscopy for wide-field high-speed dispersion-independent super resolution imaging

A new super resolution imaging method, i.e. Localized Plasmon assisted Structured Illumination Microscopy (LPSIM), is proposed. LPSIM uses an array of localized plasmonic antennas to provide dynamically tunable near-field excitations resulting in finely structured illumination patterns, independent...

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Bibliographic Details
Published in:Nanoscale 2014-06, Vol.6 (11), p.587-5812
Main Authors: Ponsetto, Joseph Louis, Wei, Feifei, Liu, Zhaowei
Format: Article
Language:English
Subjects:
Antennas
Dispersions
High speed
Illumination
Imaging
Microscopy
Plasmonics
Plasmons
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Summary:A new super resolution imaging method, i.e. Localized Plasmon assisted Structured Illumination Microscopy (LPSIM), is proposed. LPSIM uses an array of localized plasmonic antennas to provide dynamically tunable near-field excitations resulting in finely structured illumination patterns, independent of any propagating surface plasmon dispersion limitations. The illumination pattern feature sizes are limited only by the antenna geometry, and a far-field image resolved far beyond the diffraction limit is obtained. This approach maintains a wide field of view and the capacity for a high frame-rate. The recovered images for various classes of objects are presented, demonstrating a significant resolution improvement over existing methods. Fluorescent imaging resolution down to 51 nm is shown by generating tunable localized plasmon excitations on a nano-antenna array.
ISSN:2040-3364
2040-3372
DOI:10.1039/c4nr00443d