Multiband plasmonic absorber based on transverse phase resonances

Author(s)
Xu, Jun; Fang, Nicholas Xuanlai; Cui, Yanxia; Fung, Kin Hung; He, Sailing
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Abstract
We demonstrate a multiband plasmonic absorber based on transverse phase resonances. We show that the modification of conventional metallic surfaces of T-shape grooves can cause mode splitting of the plasmonic waveguide cavity modes due to lattice scattering and all the new resonant modes exhibit large absorbtivity greater than 90%. Some of the generated absorption peaks have wide-angle characteristics. Furthermore, we find that the proposed structure is fairly insensitive to the alignment error between different layers.
Date issued
2012-07
URI
http://hdl.handle.net/1721.1/78306
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
Optics Express
Publisher
Optical Society of America
Citation
Cui, Yanxia et al. “Multiband Plasmonic Absorber Based on Transverse Phase Resonances.” Optics Express 20.16 (2012): 17552. © 2012 OSA
Version: Final published version
ISSN
1094-4087
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