| 一维光子晶体非线性微腔的缺陷模和双稳态 |
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| 引用本文： | 王叶荟,唐丽,倪重文,是度芳.一维光子晶体非线性微腔的缺陷模和双稳态[J].激光技术,2006,30(5):462-464,468. |
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| 作者姓名： | 王叶荟 唐丽 倪重文 是度芳 |
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| 作者单位： | 1.江苏工业学院, 信息科学系, 常州, 213016; |
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| 摘 要： | 为了了解一维光子晶体布喇格非线性微腔产生的缺陷模和双稳态特性,采用数值模拟和理论分析相结合的方法,研究了缺陷层厚度变化和布喇格镜准周期性对缺陷模和双稳态的影响。研究结果表明,缺陷层厚度增大和折射率递增时,均可使缺陷模向低频方向移动,即布喇格腔共振模红移,因此,只要较小的入射光强就可使腔共振模红移到入射光模而产生阈值较低的双稳态,数值计算与理论分析是一致的。这对光子晶体微腔的设计有一定的意义。
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| 关 键 词： | 量子光学 非线性布喇格微腔 缺陷模 双稳态 光子晶体 |
| 文章编号： | 1001-3806（2006）05-0462-03 |
| 收稿时间： | 2005-08-24 |
| 修稿时间： | 2005-08-242006-03-13 |
The defect mode and bistability in the nonlinear Bragg microcavity composed of one-dimension photonic crystal |
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| WANG Ye-hui,TANG Li,NI Chong-wen,SHI Du-fang.The defect mode and bistability in the nonlinear Bragg microcavity composed of one-dimension photonic crystal[J].Laser Technology,2006,30(5):462-464,468. |
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| Authors: | WANG Ye-hui TANG Li NI Chong-wen SHI Du-fang |
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| Affiliation: | 1. Department of Information Science, Jiangsu Polytechnic University, Changzhou 215016, China; 2. Department of Physics, HUST, Wuhan 450074, China |
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| Abstract: | It is studied the defect mode and bistability properties of a nonlinear medium sandwiched between Bragg reflectors composed of one-dimensional photonic crystal by numerical calculation and theoretical analysis. The influence of defect layer thickness and quasi-periodic Bragg reflectors on defect mode and bistability is discussed. It is revealed that the defect mode shift to lower frequency when the increasing thickness of defect layer or refractive index of Bragg reflectors. Hence microcavity resonant mode is superposition with incident wave mode at lower incident intensity, and produce the bistability with lower threshold. The numerical calculation results accord with theoretical analysis. It is significant for design of photonic crystal microcavity. |
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| Keywords: | quantum optics nonlinear Bragg microeavity defect mode bistability photonic crystal |
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