Tunable magnetic response of metamaterials

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

Research output: Contribution to journalArticlepeer-review

157 Citations (Scopus)

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
Article number033115
JournalApplied Physics Letters
Volume95
Issue number3
DOIs
Publication statusPublished - 2009
Externally publishedYes

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