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Nanoengineering of a negative-index binary-staircase lens for the optics regime
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10.1063/1.2942383
/content/aip/journal/apl/92/24/10.1063/1.2942383
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/24/10.1063/1.2942383
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Sketch of a planoconcave grating lens. The lens is made of a medium with . The horizontal step size is smaller than the free space wavelength with .

Image of FIG. 2.
FIG. 2.

(a) Bird’s eye view of the tapered waveguide and the binary-staircase lens. (b) Close-up view of the binary-staircase lens.

Image of FIG. 3.
FIG. 3.

Optical images, from an optical scanning microscope, obtained at around the focal point of (a) the binary-staircase lens (b) and the analogous structure with no zones/steps (semicircle with smooth walls). Note that focusing is observed only with the binary-staircase lens.

Image of FIG. 4.
FIG. 4.

(a) 3D FDTD simulation of the planoconcave binary-staircase lens and (b) 3D FDTD simulation of the lens having the same geometrical dimensions as the binary-staircase one, but bearing no steps (or zones).

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/content/aip/journal/apl/92/24/10.1063/1.2942383
2008-06-19
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nanoengineering of a negative-index binary-staircase lens for the optics regime
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/24/10.1063/1.2942383
10.1063/1.2942383
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