Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices

Douglas H. Werner; Do Hoon Kwon; Iam Choon Khoo; Alexander V. Kildishev; Vladimir M. Shalaev

doi:10.1364/OE.15.003342

Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices

Douglas H. Werner, Do Hoon Kwon, Iam Choon Khoo, Alexander V. Kildishev, Vladimir M. Shalaev

Research output: Contribution to journal › Article › peer-review

167 Scopus citations

Abstract

Near-infrared metamaterials that possess a reconfigurable index of refraction from negative through zero to positive values are presented. Reconfigurability is achieved by cladding thin layers of liquid crystal both as a superstrate and a substrate on an established negative-index metamaterial, and adjusting the permittivity of the liquid crystal. Numerical results show that the index of refraction for the proposed structure can be changed over the range from -1 to +1.8 by tuning the liquid crystal permittivity from 2 to 6 at a wavelength of 1.4 μm.

Original language	English (US)
Pages (from-to)	3342-3347
Number of pages	6
Journal	Optics Express
Volume	15
Issue number	6
DOIs	https://doi.org/10.1364/OE.15.003342
State	Published - Mar 19 2007

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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title = "Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices",

abstract = "Near-infrared metamaterials that possess a reconfigurable index of refraction from negative through zero to positive values are presented. Reconfigurability is achieved by cladding thin layers of liquid crystal both as a superstrate and a substrate on an established negative-index metamaterial, and adjusting the permittivity of the liquid crystal. Numerical results show that the index of refraction for the proposed structure can be changed over the range from -1 to +1.8 by tuning the liquid crystal permittivity from 2 to 6 at a wavelength of 1.4 μm.",

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AU - Kwon, Do Hoon

AU - Khoo, Iam Choon

AU - Kildishev, Alexander V.

AU - Shalaev, Vladimir M.

PY - 2007/3/19

Y1 - 2007/3/19

N2 - Near-infrared metamaterials that possess a reconfigurable index of refraction from negative through zero to positive values are presented. Reconfigurability is achieved by cladding thin layers of liquid crystal both as a superstrate and a substrate on an established negative-index metamaterial, and adjusting the permittivity of the liquid crystal. Numerical results show that the index of refraction for the proposed structure can be changed over the range from -1 to +1.8 by tuning the liquid crystal permittivity from 2 to 6 at a wavelength of 1.4 μm.

AB - Near-infrared metamaterials that possess a reconfigurable index of refraction from negative through zero to positive values are presented. Reconfigurability is achieved by cladding thin layers of liquid crystal both as a superstrate and a substrate on an established negative-index metamaterial, and adjusting the permittivity of the liquid crystal. Numerical results show that the index of refraction for the proposed structure can be changed over the range from -1 to +1.8 by tuning the liquid crystal permittivity from 2 to 6 at a wavelength of 1.4 μm.

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Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices

Abstract

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