Electromagnetically induced grating with Rydberg atoms

被引:63
作者
Asghar, Sobia [1 ]
Ziauddin [1 ]
Qamar, Shahid [2 ]
Qamar, Sajid [1 ]
机构
[1] COMSATS Inst Informat Technol, Dept Phys, Quantum Opt Lab, Islamabad 45550, Pakistan
[2] Pakistan Inst Engn & Appl Sci, Dept Phys & Appl Math, Islamabad 45650, Pakistan
关键词
ASYMMETRIC QUANTUM-WELLS; INDUCED TRANSPARENCY; INTERFERENCE; ABSORPTION; BLOCKADE; PHOTONS; OPTICS;
D O I
10.1103/PhysRevA.94.033823
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a scheme to realize electromagnetically induced grating in an ensemble of strongly interacting Rydberg atoms, which act as superatoms due to the dipole blockade mechanism. The ensemble of three-level cold Rydberg-dressed (Rb-87) atoms follows a cascade configuration where a strong standing-wave control field and a weak probe pulse are employed. The diffraction intensity is influenced by the strength of the probe intensity, the control field strength, and the van der Waals (vdW) interaction. It is noticed that relatively large first-order diffraction can be obtained for low-input intensity with a small vdW shift and a strong control field. The scheme can be considered as an amicable solution to realize the atomic grating at the microscopic level, which can provide background-and dark-current-free diffraction.
引用
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页数:6
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