Large-Area Nanoimprinted Colloidal Au Nanocrystal-Based Nanoantennas for Ultrathin Polarizing Plasmonic Metasurfaces.
Nano Lett
; 15(8): 5254-60, 2015 Aug 12.
Article
em En
| MEDLINE
| ID: mdl-26161503
ABSTRACT
We report a low-cost, large-area fabrication process using solution-based nanoimprinting and compact ligand exchange of colloidal Au nanocrystals to define anisotropic, subwavelength, plasmonic nanoinclusions for optical metasurfaces. Rod-shaped, Au nanocrystal-based nanoantennas possess strong, localized, plasmonic resonances able to control polarization. We fabricate metasurfaces from rod-shaped nanoantennas tailored in size and spacing to demonstrate Au nanocrystal-based quarter-wave plates that operate with extreme bandwidths and provide high polarization conversion efficiencies in the near-to-mid infrared.
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MEDLINE
Assunto principal:
Coloides
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Nanotecnologia
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Nanoestruturas
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Nanopartículas
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Ouro
Idioma:
En
Revista:
Nano Lett
Ano de publicação:
2015
Tipo de documento:
Article