Tunable magnetic response of metamaterials

Shumin Xiao, Uday K. Chettiar, Alexander V. Kildishev, Vladimir Drachev, I. C. Khoo, Vladimir M. Shalaev

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Abstract

We demonstrate a thermally tunable optical metamaterial with negative permeability working in the visible range. By covering coupled metallic nanostrips with aligned nematic liquid crystals (NLCs), the magnetic response wavelength of the metamaterial is effectively tuned through control of the ambient temperature, changing the refractive index of LC via phase transitions. By increasing the ambient temperature from 20 to 50 °C, the magnetic response wavelength shifts from 650 to 632 nm. Numerical simulations confirm our tests and match the experimental observations well.

Original languageEnglish (US)
Article number033115
JournalApplied Physics Letters
Volume95
Issue number3
DOIs
StatePublished - Jul 31 2009

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Xiao, S., Chettiar, U. K., Kildishev, A. V., Drachev, V., Khoo, I. C., & Shalaev, V. M. (2009). Tunable magnetic response of metamaterials. Applied Physics Letters, 95(3), [033115]. https://doi.org/10.1063/1.3182857