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Localization and Threshold of Bistable Switching by Gap-Edge Shifting |
| CHEN Li-Xue1,2;KIM Dalwoo2;SONG Ying-Lin1;DING Wei-Qiang1;LI Wen-Hui1;LIU Shu-Tian1 |
| 1Department of Applied Physics, Harbin Institute of Technology, Harbin 150001
2Research Institute of Industrial Science and Technology, Pohang 790-600 Korea |
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| Cite this article: |
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CHEN Li-Xue, KIM Dalwoo, SONG Ying-Lin et al 2003 Chin. Phys. Lett. 20 1514-1516 |
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Abstract We numerically investigate the localization behaviour of light propagation in a one-dimensional nonlinear photonic crystal (1D-NPC). It is found that the localization of a high gap-edge mode is better than that of a low one, so that the switching threshold of the 1D-NPC with plus Kerr L-layers is much lower than that with minus Kerr H-layers. For a structure of 16 periods, the threshold of the structure with nonlinear L-layers is about 1/10 of that with nonlinear H-layers in the same level of nonlinear refractive coefficient.
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| Keywords:
42.65.Pc
73.21.Ac
42.70.Qs
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Published: 01 September 2003
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| PACS: |
42.65.Pc
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(Optical bistability, multistability, and switching, including local field effects)
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73.21.Ac
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(Multilayers)
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42.70.Qs
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(Photonic bandgap materials)
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