Longitudinal Shaping Of Subwavelength Infrared Beams Using Plasmonic Bull'S-Eye Structure With Concentric Slits

Ahmed H. Dorrah,Arthur O. Montazeri,Hoi-Ying N. Holman,Mo Mojahedi

2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)（2017）

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摘要

We report a bull's-eye gold nanostructure, which focuses infrared beams into subwavelength spots with the ability to shape the longitudinal intensity profile and the focal length, thus addressing many challenges in label-free imaging, nanolithography, and biomedical applications.

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关键词

concentric slits,subwavelength spots,longitudinal intensity profile,focal length,longitudinal shaping,subwavelength infrared beams,plasmonic bull's-eye structure,Au

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