Midinfrared metamaterials fabricated by nanoimprint lithography

Wei Wu*, Zhaoning Yu, Shih Yuan Wang, R. Stanley Williams, Yongmin Liu, Cheng Sun, Xiang Zhang, Evgenia Kim, Y. Ron Shen, Nicholas X. Fang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


A metamaterial comprising an ordered array of four metallic L-shaped components designed to operate in the mid-IR frequency regime has been fabricated and characterized. The fourfold rotational symmetry of the unit cell should suppress the undesirable bianisotropy observed for split-ring resonators. Nanoimprint lithography was used to demonstrate scalability for mass production. A dipole plasmon resonance with a negative permittivity and a magnetic resonance with a negative permeability were observed at wavelengths of 3.7 and 5.25 μm, respectively, in agreement with theoretical predictions.

Original languageEnglish (US)
Article number063107
JournalApplied Physics Letters
Issue number6
StatePublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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