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Guided Modes in a Two-Dimensional Photonic Crystal Waveguide
Consisting of Nearly-Free-Electron Metals |
| XIAO San-Shui1,3;HE Sai-Ling1,2;ZHUANG Fei1 |
| 1Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
2Department of Electromagnetic Theory, Royal Institute of Technology, S-100 44 Stockholm, Sweden
3Department of Physics, Zhejiang University, Hangzhou 310027
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| Cite this article: |
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XIAO San-Shui, HE Sai-Ling, ZHUANG Fei 2001 Chin. Phys. Lett. 18 1363-1365 |
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Abstract Guided modes in a two-dimensional photonic crystal consisting of nearly-free-electron metals are considered. To avoid time-consuming convolution, modified time-stepping formulas are used in a finite-difference time-domain approach. The guided modes in the metallic photonic crystal waveguide are related to those in a conventional metallic waveguide. A cut-off frequency exists, and consequently a mode gap at low frequencies in the photonic crystal metallic waveguide.
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| Keywords:
42.70.Qs
78.20.Bh
02.70.Bf
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Published: 01 October 2001
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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78.20.Bh
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(Theory, models, and numerical simulation)
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02.70.Bf
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(Finite-difference methods)
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