Genuine effectively biaxial left-handed metamaterials due to extreme coupling

Christoph Menzel, Rasoul Alaee, Ekaterina Pshenay-Severin, Christian Helgert, Arkadi Chipouline, Carsten Rockstuhl, Thomas Pertsch, Falk Lederer

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Most left-handed metamaterials cannot be described by local effective permittivity or permeability tensors in the visible or near-infrared due to the mesoscopic size of the respective unit cells and the related strong spatial dispersion. We lift this problem and propose a metamaterial exhibiting artificial magnetism that does not suffer from this restriction. The artificial magnetism arises from the extreme coupling between both metallic films forming the unit cell. We show that its electromagnetic response can be properly described by biaxial local constitutive relations. A genuine biaxial left-handed fishnet metamaterial is suggested, which can be realized by atomic layer deposition to fabricate the nanoscaled spacing layers required for extreme coupling.

Original languageEnglish
Pages (from-to)596-598
Number of pages3
JournalOptics Letters
Issue number4
Publication statusPublished - 15 Feb 2012
Externally publishedYes


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