Hydrodynamic modeling of surface plasmon enhanced photon induced current in a gold grating

被引：14
作者：
English, Alex [1 ]
Cheng, Cheng-Wen [2 ,3 ,4 ]
Lowe, Lloyd, II [1 ]
Shih, Min-Hsiung [2 ]
Kuang, Wan [1 ]
机构：
[1] Boise State Univ, Dept Elect & Comp Engn, Boise, ID 83725 USA
[2] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan
[3] Acad Sinica, TIGP, Taipei 11529, Taiwan
[4] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 19期
关键词：
2ND-HARMONIC GENERATION; OPTICAL RECTIFICATION; HOLE ARRAYS; REFLECTION; FILMS; DRAG;
D O I：
10.1063/1.3590200
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The current induced by incident photons on an gold grating slab is investigated numerically and experimentally. A semiclassical electrodynamic model is developed under the weak nonlinearity approximation. Electrons in the conduction band are treated as an electron gas in the presence of a self-consistent electromagnetic field. The model is solved by the finite element method and compared with measurements. The calculated current density as a function of incident angle and wavelength is found to be in qualitative agreement with the experimental measurements. The results show that increasing surface plasmon spatial variation enhances photon induced current. (C) 2011 American Institute of Physics. [doi:10.1063/1.3590200]
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页数：3
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