High Refractive Index without Absorption in a Ladder-Type System

作     者：ZENG Zhi-Qiang HOU Bang-Pin LIU Fu-Ti SHAO Ju-Xiang 

作者机构：School of Physics and Electronic Engineering Yibin University Yibin 644000 Computational Physics Key Laboratory of Sichuan Province Yibin University Yibin 644000 School of Physics and Electronic Engineering Sichuan Normal University Chengdu 610066 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2014年第31卷第3期

页      面：58-61页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10647007  and the Research Project of Education Department in Sichuan Province under Grant No 13ZB0208 

主　　题：Refractive index 

摘      要：A three-level ladder-type system with vacuum-induced coherence and incoherent pumping is studied to obtain a high refractive index without absorption. It is shown that the enhancement of the refractive index without absorption can be accomplished by choosing the proper values of the incoherent pumping, the angle between the two dipole moments, the probe detuning and the relative phase of the two coherent fields.