Electromagnetically induced transparency and its dispersion properties in a four-level inverted-Y atomic system

2003 ◽  
Vol 317 (5-6) ◽  
pp. 370-377 ◽  
Author(s):  
Amitabh Joshi ◽  
Min Xiao
Keyword(s):  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Dispersion Properties ◽  
Induced Transparency

Controllable A-T Splitting and Spatial Splitting Inside a Cascade Three-Level Atomic System

2021 ◽  
Vol 16 (5) ◽  
pp. 786-790
Author(s):  
Yan Zhang ◽  
Yuanyuan Li ◽  
Minru Hao ◽  
Yunzhe Zhang
Keyword(s):  
Optical Communication ◽  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Wave Mixing ◽  
Atomic Vapor ◽  
First Order ◽  
Spatial Signal Processing ◽  
Probe Transmission ◽  
Induced Transparency ◽  
Splitting Effect

We illustrate the experimental observations of Autler-Townes splitting and the spatial splitting in an electromagnetically induced transparency window in a atomic vapor system of D1 line. As the power of the dressing laser beam changes, we study first-order and secondary Autler-Townes splitting. The influences of these dressing beams, which lead to the larger spatial splitting of four-wave mixing and the shift of probe transmission signal with by changing frequency detuning. Studies on such controllable Autler-Townes splitting and spatial splitting effect can be very useful in applications of spatial signal processing and optical communication.

Interaction of Triply-Dressing Electromagnetically Induced Transparency in Five-level Folding Atomic System

2008 ◽  
Vol 25 (12) ◽  
pp. 4266-4269 ◽  
Author(s):  
Li Chang-Biao ◽  
Nie Zhi-Qiang ◽  
Zhang Wei-Feng ◽  
Zhang Yan-Peng ◽  
Song Jian-Ping ◽  
...  
Keyword(s):  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Induced Transparency

CONTROLLABILITY OF ELECTROMAGNETICALLY INDUCED TRANSPARENCY IN A DOPPLER BROADENED FOUR-LEVEL ATOMIC SYSTEM

2013 ◽  
Vol 27 (11) ◽  
pp. 1350037 ◽  
Author(s):  
SOMIA ABD-ELNABI ◽  
K. I. OSMAN
Keyword(s):  
Density Matrix ◽  
Electromagnetic Fields ◽  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Experimental Results ◽  
Doppler Broadening ◽  
Matrix Elements ◽  
Nonradiative Decay ◽  
Induced Transparency ◽  
Good Agreement

The influence of Doppler broadening on a four-level N-type atomic system has been investigated in the presence of spontaneous generating coherence. The atomic system interacting with three electromagnetic fields and includes the nonradiative decay, the effect of co- and counter-propagation of the fields is considered. The probe susceptibility behaviors can be modified by Doppler broadening via nonperturbative treatments of the density matrix elements solution in the absence and presence of the spontaneous generating coherence. Some interesting features are enhanced for the spectral behaviors and controllability of electromagnetically induced transparency, which were found to be in good agreement to some experimental results without including Zeeman sublevels to the system.

CONTROL OF ABSORPTION AND KERR NONLINEARITY BASED ON QUANTUM COHERENCE WITHOUT DRIVING FIELD

2010 ◽  
Vol 24 (30) ◽  
pp. 2921-2930 ◽  
Author(s):  
ZHONGHUA HUANG ◽  
AIXI CHEN ◽  
ZHAOCHU CHEN ◽  
LI DENG
Keyword(s):  
Quantum Coherence ◽  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Kerr Nonlinearity ◽  
Linear Absorption ◽  
Driving Field ◽  
Spontaneously Generated Coherence ◽  
Traditional Scheme ◽  
Atomic Medium ◽  
Induced Transparency

In a three-level atomic system, the influences of spontaneously generated coherence on the linear absorption and the Kerr nonlinearity are investigated. Our studies show that properties of linear absorption can be dramatically affected by the effect of spontaneously generated coherence. With increase of intensities of spontaneously generated coherence, absorption inhibition will occur, and finally the atomic medium becomes transparent. Furthermore, we find that the Kerr nonlinearity can be obviously enhanced under the action of effects of spontaneously generated coherence. Comparing with traditional scheme of the electromagnetically induced transparency, absorption and Kerr nonlinearity can be controlled without need another driving field in our scheme.

scholarly journals Storage, Splitting, and Routing of Optical Peregrine Solitons in a Coherent Atomic System

2021 ◽  
Vol 9 ◽  
Author(s):  
Chong Shou ◽  
Guoxiang Huang
Keyword(s):  
Information Processing ◽  
High Efficiency ◽  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Propagation Loss ◽  
Optical Information ◽  
Storage And Retrieval ◽  
Induced Transparency ◽  
Generation Power ◽  
Control Laser

We propose a scheme to realize the storage and retrieval of optical Peregrine solitons in a coherent atomic gas via electromagnetically induced transparency (EIT). We show that optical Peregrine solitons with very small propagation loss, ultraslow motional velocity, and extremely low generation power can be created in the system via EIT. We also show that such solitons can be stored, retrieved, split, and routed with high efficiency and fidelity through the manipulation of control laser fields. The results reported here are useful for the active control of optical Peregrine solitons and promising for applications in optical information processing and transmission.

Electromagnetically induced transparency and ultra-narrow absorption in a ladder-type three-level atomic system

Optik ◽  
2015 ◽  
Vol 126 (20) ◽  
pp. 2495-2499 ◽  
Author(s):  
Guiyin Zhang ◽  
Weiwei Shi ◽  
Yidong Jin ◽  
Haiping Li
Keyword(s):  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Induced Transparency
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