Journal
OPTICS EXPRESS
Volume 17, Issue 13, Pages 11039-11044Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.011039
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Funding
- 973 Program of China [2006CB302900]
- National Natural Science Foundation of China [60507014, 60528003, 60778018]
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Sub-wavelength hole array (SHA) combined with thick metal layer (TML) is shown to have simultaneous suppressed transmission and reflection, resulting near-perfect absorption. Unlike the simultaneous electric and magnetic resonances in electric ring resonator and cut wire [PRL, 100, 207402 (2008)], such behavior results from strong anti-symmetric surface plasmons coupling supported by SHA and TML. The polarization-free characteristic permits to construct an ideal absorber for some practical applications in turbid backgrounds. (C) 2009 Optical Society of America
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