scholarly journals Phase-dependent electromagnetically induced transparency in a four-level atom system

2011 ◽  
Vol 60 (10) ◽  
pp. 104205
Author(s):  
Yang Li-Jun ◽  
Ma Li-Jin ◽  
Lyu Dong-Qi ◽  
Zhang Lian-Shui
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Level Atom ◽  
Induced Transparency ◽  
Atom System

The Response time of Electromagnetically Induced Transparency in a Λ-type Atom System

2014 ◽  
Vol 20 (2) ◽  
pp. 110-118
Author(s):  
郎晶群 LANG Jing-qun ◽  
许静平 XU Jing-ping ◽  
羊亚平 YANG Ya-ping
Keyword(s):  
Response Time ◽  
Electromagnetically Induced Transparency ◽  
Induced Transparency ◽  
Atom System

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

2019 ◽  
Vol 9 (8) ◽  
pp. 1720 ◽  
Author(s):  
Liping Hao ◽  
Yongmei Xue ◽  
Jiabei Fan ◽  
Yuechun Jiao ◽  
Jianming Zhao ◽  
...  
Keyword(s):  
Rabi Frequency ◽  
Room Temperature ◽  
Microwave Field ◽  
Electromagnetically Induced Transparency ◽  
Field Measurements ◽  
Coupling Laser ◽  
Field Coupling ◽  
Small Probe ◽  
Level Atom ◽  
Induced Transparency

An electromagnetically induced transparency (EIT) of a cascade-three-level atom involving Rydberg level in a room-temperature cell, formed with a cesium 6 S 1 / 2 -6 P 3 / 2 -66 S 1 / 2 scheme, is employed to detect the Autler-Townes (AT) splitting resulted with a 15.21-GHz microwave field coupling the 66 S 1 / 2 →65 P 1 / 2 transition. Microwave field induced AT splitting, f A T , is characterized by the distance of peak-to-peak of an EIT-AT spectrum. The f A T dependence on the microwave Rabi frequency, Ω M W , demonstrates two regions, the strong-coupling linear region, f A T ≈ Ω M W and the weak-coupling nonlinear region, f A T ≲ Ω M W . The f A T 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.

scholarly journals Distinction of electromagnetically induced transparency and Autler-Towners splitting in a Rydberg-involved ladder-type cold atom system

2021 ◽  
Vol 29 (8) ◽  
pp. 11406
Author(s):  
Zhonghua Ji ◽  
Yuechun Jiao ◽  
Yongmei Xue ◽  
Liping Hao ◽  
Jianming Zhao ◽  
...  
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Cold Atom ◽  
Induced Transparency ◽  
Atom System

Achieving Atom Localization in Noise Spectrum from a Loop Three Level Atom

2021 ◽  
Vol 13 (4) ◽  
pp. 620-623
Author(s):  
Xue-Hua Zhang ◽  
Wen-Tao Jin ◽  
Li-Min Zheng ◽  
Jun-Lan Feng
Keyword(s):  
Microwave Field ◽  
Resonance Condition ◽  
Electromagnetically Induced Transparency ◽  
Noise Spectrum ◽  
Resonance Fluorescence ◽  
Localization Scheme ◽  
Induced Transparency ◽  
Atom System ◽  
Atom Localization ◽  
Sub Wavelength

A scheme for achieving atom localization in the noise spectrum in phase quadrature of resonance fluorescence from a three-level A atom is suggested. We add a microwave field to the lower energy states in the three-level A atom localization scheme, and form a three-level loop atom system. When spontaneous emission photons are detected, by changing the relative phase between the three nonresonant fields, the atom is located in one of two half wavelengths, so the probability of atomic localization is 50%. We also see that the intensity and the detuning of the microwave field affect intensively localization probability. Compared with the scheme based on electromagnetically induced transparency, the detection probability of atoms in the sub wavelength range is only 25%, and the resonance condition is useless.

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