Strong visible magnetic resonance of size-controlled silicon-nanoblock metasurfaces. (18th March 2016)

• Record Type: Journal Article
• Authors: Yi, Yoonsik; Yoo, SeokJae; Choe, Jong-Ho; Park, Sang-Gil; Jeong, Ki-Hun; Park, Q-Han; Choi, Choon-Gi
• Is Part Of: Applied physics express. Volume 9:Number 4(2016:Apr.)
• Publication Date: 2016-03-18
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.9.042001
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: 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.