Magnetic metamaterials in the blue range using aluminum nanostructures

Year: 2010

Authors: Jeyaram Y., Jha SK., Agio M., Loffler J.F., Ekinci Y.

Autors Affiliation: ETH, Dept Mat, Lab Met Phys & Technol, CH-8093 Zurich, Switzerland; ETH, Phys Chem Lab, Nano Opt Grp, CH-8093 Zurich, Switzerland; Paul Scherrer Inst, CH-5232 Villigen, Switzerland.

Abstract: We report an experimental and theoretical study of the optical properties of two-dimensional arrays of aluminum nanoparticle in-tandem pairs. Plasmon resonances and effective optical constants of these structures are investigated, and strong magnetic response as well as negative permeability is observed down to 400 nm wavelength. Theoretical calculations based on the finite-difference time-domain method are performed for various particle dimensions and lattice parameters, and are found to be in good agreement with the experimental findings. The results show that metamaterials operating across the whole visible wavelength range are feasible. (C) 2010 Optical Society of America

Journal/Review: OPTICS LETTERS

Volume: 35 (10)      Pages from: 1656  to: 1658

More Information: This work was supported by ETH Research Grant TH-29/07-3. M. A. thanks Vahid Sandoghdar for continuous support and encouragement. Part of this work was performed at the Swiss Light Source (SLS), Paul Scherrer Institute, Switzerland.
KeyWords: Negative-index Metamaterials; Permeability; Gold; Region; Arrays; Light; Nm
DOI: 10.1364/OL.35.001656

Citations: 23
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