Magnetic metamaterials in the blue range using aluminum nanostructures

Details Magnetic metamaterials in the blue range using aluminum nanostructures Magnetic metamaterials in the blue range using aluminum nanostructures

2009-11-23

arxiv.org/abs/0911.4519v1

Opt. Lett. 35, 1656 (2010)

Physics

Optics

3 pages, 4 figures

Scientific paper

10.1364/OL.35.001656

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 are 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 results. The results show that metamaterials operating across the whole visible wavelength range are feasible.

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