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Strong magnetic response at 595 nm with Si-nanoblock metasurface

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Abstract

We experimentally demonstrate strong magnetic resonance at 595 nm using an array of amorphous Si nanoblocks. The results show the magnetic resonance can be continuously tuned by appropriately varying the size and the thickness of a-Si nanoblocks. We also experimentally achieved a magnetic resonant Q-factor of ~10, which is a higher value than that yielded by a metallic split ring resonator at the visible range.

© 2016 Optical Society of America

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