Broadband linear and nonlinear optical response of plasmonic quasicrystals
Optics Communications(2016)
摘要
Plasmonic quasicrystals with 5-fold rotation symmetry are shown to offer broadband transmission enhancement. The observed linear transmission enhancement leads to broadband second harmonic generation in a wide incident angle range contrary to unpatterned gold film. From the measured linear and harmonic transmitted powers, we estimate the 2nd order susceptibility values in the 760–840nm range.
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关键词
Plasmonic quasicrystals,Transmission enhancement,Quasiperiodic arrays,Broadband second harmonic generation
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