Colored visible light metamaterials based on random dendritic cells

Details Colored visible light metamaterials based on random dendritic cells Colored visible light metamaterials based on random dendritic cells

2011-03-24

arxiv.org/abs/1103.4714v2

Physics

Optics

Scientific paper

Optical metamaterials (OMs) at visible wavelengths have been extensively developed. OMs reported recently are all composed of periodic structure, and fabricated by top-down approaches. Here demonstrated are the colored visible light frequency metamaterials composed of double layer array disordered and geometrical variational dendritic cells as well as fabricated by a novel bottom-up approach. The experiment demonstrates that the OMs composed of random silver dendritic cells which caused the appearance of multiple transmission passbands at red and yellow light frequencies. Moreover, the slab focusing experiment reveals a clear point image in the range of half-wavelength with an intensity of 5% higher than that of the light source. The colored OMs proposed will create a new way to prepare the cloak and the perfect lens suitable for optical frequency.

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