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Experimental demonstration of an isotropic metamaterial super lens with negative unity permeability at 8.5 MHz
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10.1063/1.4732158
/content/aip/journal/apl/101/1/10.1063/1.4732158
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/1/10.1063/1.4732158
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Extracted effective permeability of the metamaterial. Note that the real part of the dispersive permeability passes through negative 1 at 8.5 MHz with very low loss. The top right inset shows the volumetric unit cell used in simulations, and the left shows a prototype.

Image of FIG. 2.
FIG. 2.

Metamaterial fabrication and testing. (a) Measurement setup to determine the near-field imaging properties of a metamaterial slab. (b) Photograph of the two-layer metalens prototype.

Image of FIG. 3.
FIG. 3.

Measurements and simulations of a single magnetic source loop. The units for the vertical axis are scaled so that unity corresponds to the peak transmitted power without the lens present. (a) Measured transmission intensity from a loop in the source plane to a loop scanned along the x-axis in the image plane. The inset shows the simulated magnetic field strength in the image plane without the metamaterial present. (b) Measured transmission intensity with the receiving loop scanned along the y-axis. Here, the inset shows the simulated magnetic field strength in the image plane with the metamaterial lens present.

Image of FIG. 4.
FIG. 4.

Measurements and simulations of two magnetic source loops spaced 80 mm apart. (a) Simulated magnetic field strength in the image plane without the metamaterial present. Note that the two magnetic sources cannot be resolved. (b) Simulated magnetic field strength in the image plane with the metamaterial present. The magnetic sources appear as two distinct peaks. (c) Measured transmission intensity from two loops in the source plane to a loop scanned in the image plane confirming the increased signal strength and improved resolution. The units for the vertical axis are scaled so that unity corresponds to the peak transmitted power without the lens present.

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/content/aip/journal/apl/101/1/10.1063/1.4732158
2012-07-02
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental demonstration of an isotropic metamaterial super lens with negative unity permeability at 8.5 MHz
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/1/10.1063/1.4732158
10.1063/1.4732158
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