Polarization-dependent coupling to plasmon modes on submicron gold wire in photonic crystal fiber

被引：212
作者：
Lee, H. W. [1 ,2 ]
Schmidt, M. A. [1 ]
Tyagi, H. K. [1 ]
Sempere, L. Prill [1 ]
Russell, P. St. J. [1 ]
机构：
[1] Univ Erlangen Nurnberg, Max Planck Res Grp IOIP, D-91058 Erlangen, Germany
[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 11期
关键词：
D O I：
10.1063/1.2982083
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present experimental results on coupling to surface plasmon modes on gold nanowires selectively introduced into polarization-maintaining photonic crystal fibers. Highly polarization- and wavelength-dependent transmission is observed. In one sample 24.5 mm long, the transmission on and off resonance differs by as much as 45 dB. Near-field optical images of the light emerging from such a gold-filled fiber show light guided on the wire at surface plasmon resonances. Finite element simulations are in good agreement with the experimental results. These gold-filled fibers can be potentially used as in-fiber wavelength-dependent filters and polarizers and as near-field tips for sub-wavelength-scale imaging. (C) 2008 American Institute of Physics.
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