Superluminal optical solitons in a four-level tripod atomic system

被引:16
作者
Han, Dingan [1 ]
Zeng, Yaguang
Bai, Yanfeng
Huang, Chunqing
机构
[1] Foshan Univ, Dept Phys, Foshan 528000, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Ctr Cold Atom Phys, Shanghai 201800, Peoples R China
关键词
D O I
10.1088/0953-4075/39/14/010
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
With one weak probe field and two strong pumping fields, superluminal optical solitons are formed in a lifetime-broadened four-level tripod atomic medium. With proper parameters, both dark and bright solitons can occur in the highly resonant medium. The corresponding group velocity of the solitons can be superluminal. Meanwhile, the conditions for superluminal solitons occurrence are given.
引用
收藏
页码:3029 / 3035
页数:7
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