Amplitude control of the Goos-Hanchen shift via a Kerr nonlinearity

被引：56

作者：

Abbas, Muqaddar ^{[1
]}

Ziauddin ^{[1
]}

Qamar, Sajid ^{[1
]}

机构：

[1] COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan

来源：

LASER PHYSICS LETTERS | 2014年 / 11卷 / 01期

关键词：

LATERAL SHIFT; LIGHT; REFLECTION; INDEX; DISPLACEMENT; PROPAGATION; INFORMATION; REFRACTION; VELOCITY; SPEED;

D O I：

10.1088/1612-2011/11/1/015201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The influence of the Kerr nonlinearity on the group index of a dispersive intracavity medium is revisited using a Raman gain based scheme to obtain amplitude control of the Goos-Hanchen (GH) shift in the reflected light. The intracavity medium exhibits a Raman gain process which is accompanied by anomalous dispersion, i.e., superluminal pulse propagation (Dogariu et al 2000 Nature 406 277). In the presence of a Kerr field, the gain-dispersion properties of the intracavity medium are modified, which leads to enhancement in the positive and negative group indices of the medium. The behavior of the GH shift in the reflected light due to the enhancement in the group indices in the presence of the Kerr field is investigated, and relatively large positive and negative GH shifts can be obtained.

引用

页数：8

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