Large-scale fabrication of achiral plasmonic metamaterials with giant chiroptical response

• Morten Slyngborg,
• Yao-Chung Tsao and
• Peter Fojan

Beilstein J. Nanotechnol. 2016, 7, 914–925, doi:10.3762/bjnano.7.83

• Morten Slyngborg Yao-Chung Tsao Peter Fojan Department of Physics and Nanotechnology, Aalborg University, Skjernvej 4A, 9220 Aalborg East, Denmark 10.3762/bjnano.7.83 Abstract A variety of extrinsic chiral metamaterials were fabricated by a combination of self-ordering anodic oxidation of

• in the range from UVA to IR. These extrinsic chiral metamaterials only exhibit significant chiroptical response at non-normal angles of incidence. This intrinsic property enables the probing of both enantoimeric structures on the same sample, by inverting the tilt of the sample relative to the normal

• . Keywords: biomolecule sensing; extrinsic chiral metamaterials; scalable fabrication; Introduction In recent years metamaterials have attracted a tremendous amount of attention owing to their unique properties enabling the fabrication and design of devices hitherto impossible. These properties have found