| Original Articles |
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Simultaneously Large and Opposite Lateral Beam Shifts for TE and TM Modes on a Double Metal-Cladding Slab |
| LIU Xuan-Bin;CAO Zhuang-Qi;ZHU Peng-Fei;SHEN Qi-Shun;LIU Xiang-Min |
| Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 |
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| Cite this article: |
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LIU Xuan-Bin, CAO Zhuang-Qi, ZHU Peng-Fei et al 2006 Chin. Phys. Lett. 23 2077-2079 |
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Abstract We report simultaneously large and opposite Goos--Hänchen shifts for TE and TM beams on a double metal-cladding slab. Theoretical examination shows that both positive and negative lateral shifts are in two orders of the wavelength. It is also found that the magnitude of the lateral beam shift strongly depends on the thickness of the upper metal layer. The optimal thickness of the upper metal layer for zero reflection is found to be the critical thickness above which a negative beam shift occurs. Numerical calculations are in good agreement with the theoretical results.
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| Keywords:
42.25.Gy
41.20.Jb
78.20.Bh
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Published: 01 August 2006
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| PACS: |
42.25.Gy
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(Edge and boundary effects; reflection and refraction)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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78.20.Bh
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(Theory, models, and numerical simulation)
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