Role of incoherent pumping and Er3+ ion concentration on subluminal and superluminal light propagation in Er3+-doped YAG crystal

被引：8
作者：
Asadpour, Seyyed Hossein [1 ]
Soleimani, H. Rahimpour [1 ]
机构：
[1] Univ Guilan, Dept Phys, Rasht, Iran
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 01期
关键词：
Er3+ ion concentration; incoherent pumping field; superluminal; ELECTROMAGNETICALLY INDUCED TRANSPARENCY; CONTROLLABLE OPTICAL BISTABILITY; 2-DIMENSIONAL ATOM LOCALIZATION; ENHANCED KERR NONLINEARITY; PHASE-SENSITIVE ABSORPTION; SPIN COHERENCE; GROUP-VELOCITY; MULTISTABILITY; SYSTEM; INTERFERENCE;
D O I：
10.1088/1674-1056/24/1/014204
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the absorption-dispersion process and group index of weak probe field in a four-level Er3+:YAG crystal. We find that the Er3+ ion concentration and incoherent pumping field can influence the absorption-dispersion process and group index of weak probe field. Moreover, our results show that Er3+ ion concentration plays a major role in lasing without inversion and absorption with inversion.
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页数：6
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