Controllable electromagnetically induced grating in a cascade-type atomic system

A controllable electromagnetically induced grating (EIG) is experimentally realized in a coherent rubidium ensemble with 5 S 1/2-5 P 3/2-5 D 5/2 cascade configuration. In our work, a whole picture describing the relation between the first-order diffraction efficiency and the power of the coupling fi...

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Bibliographic Details
Published in:Frontiers of physics 2019-10, Vol.14 (5), p.52603, Article 52603
Main Authors: Yuan, Jin-Peng, Wu, Chao-Hua, Li, Yi-Hong, Wang, Li-Rong, Zhang, Yun, Xiao, Lian-Tuan, Jia, Suo-Tang
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Atomic
coherent optical effects
Condensed Matter Physics
Controllability
Diffraction efficiency
diffraction gratings
Diffraction patterns
Efficiency
Lasers
Molecular
multiphoton processes
Optical and Plasma Physics
Optics
Particle and Nuclear Physics
Periodic structures
Physics
Physics and Astronomy
Power
Propagation
Research Article
Rubidium
Semiconductors
Spectrum analysis
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Summary:A controllable electromagnetically induced grating (EIG) is experimentally realized in a coherent rubidium ensemble with 5 S 1/2-5 P 3/2-5 D 5/2 cascade configuration. In our work, a whole picture describing the relation between the first-order diffraction efficiency and the power of the coupling field is experimentally presented for the first time, which agrees well with the theoretical prediction. More important, by fine tuning the experimental parameters, the first-order diffraction efficiency of as high as 25% can be achieved and a clear three-order diffraction pattern is also observed. Such a controllable periodic structure can provide a powerful tool for studying the control of light dynamics, pave the way for realizing new optical device.
ISSN:2095-0462
2095-0470
DOI:10.1007/s11467-019-0924-1