期刊
OPTICS COMMUNICATIONS
卷 284, 期 6, 页码 1553-1556出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2010.10.091
关键词
Stationary-phase; Intrinsic damping; Radiative damping; Long-range surface plasmon
类别
资金
- Excellent Principals and Teacher Foundation of Shanghai
- Shanghai Municipal Education Commission [slg08004, slg08006]
- Shanghai Education Development Foundation [09CG49]
- Shanghai Leading Academic Discipline Project [S30502]
- Shanghai Committee of Science Technology [08DZ2272800]
In this paper, we examine theoretically the beam shift at visible wavelengths on a long-range surface plasmon (LRSP) configuration by using the stationary-phase approach. We report that the lateral beam shift at the resonance of LRSP can be two orders of magnitude greater than a wavelength. It is also found that the sign of the lateral beam shift depends on the magnitude of the intrinsic damping relative to that of the radiative damping. Negative lateral beam shift occurs when the former is larger than the latter. (C) 2010 Elsevier B.V. All rights reserved.
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