Aberration-free ultrathin flat lenses and axicons at telecom wavelengths based on plasmonic metasurfaces.
Nano Lett
; 12(9): 4932-6, 2012 Sep 12.
Article
em En
| MEDLINE
| ID: mdl-22894542
ABSTRACT
The concept of optical phase discontinuities is applied to the design and demonstration of aberration-free planar lenses and axicons, comprising a phased array of ultrathin subwavelength-spaced optical antennas. The lenses and axicons consist of V-shaped nanoantennas that introduce a radial distribution of phase discontinuities, thereby generating respectively spherical wavefronts and nondiffracting Bessel beams at telecom wavelengths. Simulations are also presented to show that our aberration-free designs are applicable to high-numerical aperture lenses such as flat microscope objectives.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Refratometria
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Telecomunicações
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Artefatos
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Ressonância de Plasmônio de Superfície
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Lentes
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Modelos Teóricos
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article