Strong visible magnetic resonance of size-controlled silicon-nanoblock metasurfaces

To extend the operating window of all-dielectric metamaterials into the visible regime, obtaining controllable magnetic resonance is essential. We experimentally demonstrated strong magnetic resonance at 595 nm using an array of amorphous silicon (a-Si) nanoblocks. The results of both theoretical ca...

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Published inApplied physics express Vol. 9; no. 4; pp. 42001 - 42003
Main Authors Yi, Yoonsik, Yoo, SeokJae, Choe, Jong-Ho, Park, Sang-Gil, Jeong, Ki-Hun, Park, Q-Han, Choi, Choon-Gi
Format Journal Article
LanguageEnglish
Published The Japan Society of Applied Physics 01.04.2016
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Summary:To extend the operating window of all-dielectric metamaterials into the visible regime, obtaining controllable magnetic resonance is essential. We experimentally demonstrated strong magnetic resonance at 595 nm using an array of amorphous silicon (a-Si) nanoblocks. The results of both theoretical calculations and experiments show that magnetic resonance can be tuned continuously by appropriately varying the size and thickness of a-Si nanoblocks. We also experimentally achieved a magnetic resonance Q-factor of ∼10, which is a higher value than that yielded by a metallic split-ring resonator in the visible regime.
ISSN:1882-0778
1882-0786
DOI:10.7567/APEX.9.042001