调谐耦合场作用下的电磁诱导透明和增益

李晓莉; 张连水; 杨悦; 杨丽君

doi:10.3788/fgxb20113201.0070

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调谐耦合场作用下的电磁诱导透明和增益

器件制备及器件物理 | 更新时间：2020-08-12

- 调谐耦合场作用下的电磁诱导透明和增益
- Electromagnetically Induced Transparency and Gain under The Effect of Tuned Coupling Field
- 发光学报 2011年32卷第1期页码：70-77
- 作者机构：
  
  河北大学物理科学与技术学院, 河北保定 071002
- 作者简介：
- 基金信息：
  
  河北省自然科学基金(A2009000140)();河北大学自然科学研究计划(2008Q14)资助项目()
- DOI：10.3788/fgxb20113201.0070
  中图分类号： O437;O431.2
- 收稿日期：2010-04-15，
  
  修回日期：2010-07-08，
  
  网络出版日期：2011-01-22，
  
  纸质出版日期：2011-01-22
- 稿件说明：
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李晓莉, 张连水, 杨悦, 杨丽君. 调谐耦合场作用下的电磁诱导透明和增益[J]. 发光学报, 2011,32(1): 70-77

LI Xiao-li, ZHANG Lian-shui, YANG Yue, YANG Li-jun. Electromagnetically Induced Transparency and Gain under The Effect of Tuned Coupling Field[J]. Chinese Journal of Luminescence, 2011,32(1): 70-77
李晓莉, 张连水, 杨悦, 杨丽君. 调谐耦合场作用下的电磁诱导透明和增益[J]. 发光学报, 2011,32(1): 70-77 DOI： 10.3788/fgxb20113201.0070.

LI Xiao-li, ZHANG Lian-shui, YANG Yue, YANG Li-jun. Electromagnetically Induced Transparency and Gain under The Effect of Tuned Coupling Field[J]. Chinese Journal of Luminescence, 2011,32(1): 70-77 DOI： 10.3788/fgxb20113201.0070.

摘要

在通常的型三能级系统中

耦合场和探测场分别与一对光学跃迁能级发生相互作用

使探测吸收曲线上出现线宽极窄的电磁诱导透明(Electromagnetically Induced Transparency

EIT)特性。本文采用调谐耦合场同时激励两个基态精细结构能级与激发态能级之间的跃迁

使系统同时呈现EIT和自发诱导相干凹陷两种特性

甚至出现EIT增益现象。详细讨论了耦合场调谐过程中探测吸收曲线的变化规律。研究结果表明:本系统中EIT和自发诱导相干凹陷之间存在相干作用

而且当调谐耦合场的激发频率满足一定条件时

它们之间的相干作用变得很显著

使EIT上出现增益现象。

Abstract

Electromagnetically induced transparency (EIT) with extremely narrow spectral width is obtained in a well-studied lambda three level system where a coupling field and a probing field interact with two optical transitions. By tuning coupling field

it excites the transitions between two ground state hyperfine levels and excited state level. In this paper

both EIT and spontaneous radiation induced coherent dip can be obtained

and even the gain is observed to superpose to the EIT window. By discussing the behaviors of probing field absorption profiles under the effect of the tuned coupling field

it can be seen that there are quantum interference and coherence between EIT and spontaneous radiation induced coherent dip

and the coherence becomes remarkable when the excitation frequency of the coupling field satisfies certain conditions.

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Keywords

references

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