| Waveguides Induced by Screening-Photovoltaic Solitons in Biased Photorefractive-Photovoltaic Crystals |
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| 作者姓名： | 卢克清 张美志 越卫 张彦鹏 宋建平 |
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| 作者单位： | [1]State Key Laboratory of Transient Optics and Photonics, Xi＇an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi＇an 710068 [2]Department of Electronic Science and Technology, Xi＇an Jiaotong University, Xi＇an 710049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10474136. |
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| 摘 要： |
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| 关 键 词： | 波导 筛选光电孤立波 有偏光折射-光电流晶体 光电效应 |
| 收稿时间： | 2006-04-05 |
| 修稿时间： | 2006-04-05 |
Waveguides Induced by Screening-Photovoltaic Solitons in Biased Photorefractive-Photovoltaic Crystals |
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| LU Ke-Qing, ZHANG Mei-Zhi, ZHAO Wei, YANG Yan-Long, YANG Yang, ZHANG Yu-Hong, LIU Xue-Ming, ZHANG Yan-Peng , SONG Jian-Ping.Waveguides Induced by Screening-Photovoltaic Solitons in Biased Photorefractive-Photovoltaic Crystals[J].Chinese Physics Letters,2006,23(10):2770-2773. |
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| Authors: | LU Ke-Qing ZHANG Mei-Zhi ZHAO Wei YANG Yan-Long YANG Yang ZHANG Yu-Hong LIU Xue-Ming ZHANG Yan-Peng SONG Jian-Ping |
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| Abstract: | We investigate theoretically waveguides induced by screening-photovoltaic solitons in biased photorefractive-photovoltaic crystals. We show that the number of guided modes in a waveguide induced by a bright screening photovoltaic soliton increases monotonically with the increasing intensity ratio of the soliton, which is the ratio between the peak intensity of the soliton and the dark irradiance. On the other hand, waveguides induced by dark screening-photovoltaic solitons are always single mode for all intensity ratios and the confined energy near the centre of a dark screening-photovoltaic soliton increases monotonically with the increasing intensity ratio. When the bulk photovoltaic effect is neglectable, these waveguides are those induced by screening solitons. When the external field is absent, these waveguides predict those induced by photovoltaic solitons. |
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