Obstructive micro diffracting structures as an alternative to plasmonics nano slits for making efficient microlenses

Obstructive micro diffracting structures as an alternative to plasmonics nano slits for making efficient microlenses

Miniature optical components at the wavelength scale remain today a theoretically opened challenging problem of great technological interest. Appart from refractive micro-optics, plasmonics have been proposed to realize micro lenses with properly designed planar metallic nano-patterns. We show in th...

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Bibliographic Details
Published in:Optics express Vol. 20; no. 24; pp. 26542 - 26547
Main Authors: Vitrant, Guy, Zaiba, Soraya, Vineeth, Benyamin Y, Kouriba, Timothe, Ziane, Omar, Stéphan, Olivier, Bosson, Jocelyne, Baldeck, Patrice L
Format: Journal Article
Language:English
Published: United States Optical Society of America - OSA Publishing 19-11-2012
Subjects:
Computer-Aided Design
Equipment Design
Humans
Lenses
Light
Nanostructures - chemistry
Optical Devices
Optics
Physics
Scattering, Radiation
Surface Plasmon Resonance - instrumentation
Online Access:Get full text
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Summary:Miniature optical components at the wavelength scale remain today a theoretically opened challenging problem of great technological interest. Appart from refractive micro-optics, plasmonics have been proposed to realize micro lenses with properly designed planar metallic nano-patterns. We show in this paper that efficient light focusing at the diffraction limit with higher transmission can be obtained with micro-structures much easier to fabricate than nano ones, such as a simple micro-slit studied here as an example. Optical properties are attributed to diffraction and a quantitative excellent agreement between experiment and theory is obtained.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.026542