| Investigation on abnormal group velocities in 1D coaxial photonic crystals |
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| 引用本文： | TONG Yuanwei ZHANG Yewen HE Li LI Hongqiang CHEN Hong. Investigation on abnormal group velocities in 1D coaxial photonic crystals[J]. 科学通报(英文版), 2006, 51(11): 1281-1286. DOI: 10.1007/s11434-006-1281-3 |
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| 作者姓名： | TONG Yuanwei ZHANG Yewen HE Li LI Hongqiang CHEN Hong |
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| 作者单位： | [1]Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092, China [2]School of Electronics and Information Engineering, Tongji University,Shanghai 200092, China [3]University of Shanghai for Science and Technology, Shanghai 200093, China |
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| 基金项目： | This work was supported by the 973 Project （2001CB610406） and the National Natural Science Foundation of China （Grant Nos. 50477048 and 10474072） |
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| 摘 要： | Recently, controlling the propagation velocity of electromagnetic wave has been the object of many re- searches because it offers an extra degree of flexibility for processing signals. Reducing the transmission ve- locity, even stopping and storing the mi…
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| 关 键 词： | 同轴晶体 群速度 超光速 固体物理 |
| 收稿时间： | 2005-07-02 |
| 修稿时间： | 2005-07-022005-11-09 |
Investigation on abnormal group velocities in 1D coaxial photonic crystals |
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| Yuanwei Tong,Yewen Zhang,Li He,Hongqiang Li,Hong Chen. Investigation on abnormal group velocities in 1D coaxial photonic crystals[J]. Chinese science bulletin, 2006, 51(11): 1281-1286. DOI: 10.1007/s11434-006-1281-3 |
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| Authors: | Yuanwei Tong Yewen Zhang Li He Hongqiang Li Hong Chen |
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| Affiliation: | (1) Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;(2) School of Electronics and Information Engineering, Tongji University, Shanghai, 200092, China;(3) University of Shanghai for Science and Technology, Shanghai, 200093, China |
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| Abstract: | In this paper, the group velocities of electromagnetic wave for a one-dimensional coaxial photonic crystal in the stop bands with and without defect mode are studied. The results show that the group velocities exceed c (the speed of light in vac- uum) in the stop band and it tends to be very slow in the defect mode. The group velocities also are ob- tained using the method of the transmission line and transmission matrix. The simulating results agree well with the experimental. |
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| Keywords: | coaxial photonic crystals group velocity superluminal subluminal. |
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