Nonlinearity of Microwave Electric Field Coupled Rydberg Electromagnetically Induced Transparency and Autler-Townes Splitting

被引：9

作者：

Hao, Liping ^{[1
]}

Xue, Yongmei ^{[1
]}

Fan, Jiabei ^{[1
]}

Jiao, Yuechun ^{[1
,2
]}

Zhao, Jianming ^{[1
,2
]}

Jia, Suotang ^{[1
,2
]}

机构：

[1] Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Shanxi, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 08期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Rydberg EIT-AT; cascade four-level atom; nonlinearity effect; ATOMS;

D O I：

10.3390/app9081720

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An electromagnetically induced transparency ( EIT) of a cascade- three- level atom involving Rydberg level in a room- temperature cell, formed with a cesium 6S1/ 2- 6P3/ 2- 66S1/ 2 scheme, is employed to detect the Autler- Townes ( AT) splitting resulted with a 15.21- GHz microwave field coupling the 66S1/ 2 ! 65P1/ 2 transition. Microwave field induced AT splitting, fAT, is characterized by the distance of peak- to- peak of an EIT- AT spectrum. The fAT dependence on the microwave Rabi frequency, W MW, demonstrates two regions, the strong- coupling linear region, fAT similar to W MW and the weak- coupling nonlinear region, fAT. W MW. The fAT dependencies on the probe and coupling Rabi frequency are also investigated. Using small probe- and coupling- laser, the Rabi frequency is found to enlarge the linear regime and decrease the uncertainty of the microwave field measurements. The measurements agree with the calculations based on a four- level atomic model.

引用

页数：9