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Localization of Surface-Exciton Polaritons |
| WANG Qing-Song;CHENG Ze |
| Department of Physics, Huanzhong University of Science and
Technology, Wuhan 430074 |
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| Cite this article: |
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WANG Qing-Song, CHENG Ze 2002 Chin. Phys. Lett. 19 970-973 |
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Abstract We develop a numerical model to investigate the localization of surface-exciton polaritons in the presence of random roughness and spatial dispersion. It is found that the localization occurs in a limited frequency range near the maximum frequency of surface-exciton polaritons. The decaying length in the extended region is much larger than that in the localized region. The localization of surface-exciton polaritons is due to the destructive interference between waves scattered from the rough surface.
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| Keywords:
72.15.Rn
42.25.Dd
78.68.Gp
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Published: 01 July 2002
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| PACS: |
72.15.Rn
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(Localization effects (Anderson or weak localization))
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42.25.Dd
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(Wave propagation in random media)
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78.68.Gp
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