Electromagnetically induced grating in a four-level tripod-type atomic system

doi:10.1088/1674-1056/23/7/074204

中国物理B ›› 2014, Vol. 23 ›› Issue (7): 74204-074204.doi: 10.1088/1674-1056/23/7/074204

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Electromagnetically induced grating in a four-level tripod-type atomic system

董雅宾, 郭耀华

Department of Physics, Shanxi University, Taiyuan 030006, China

收稿日期:2013-11-18 修回日期:2014-02-24 出版日期:2014-07-15 发布日期:2014-07-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grants Nos. 11004126 and 61275212), the Natural Science Foundation of Shanxi Province, China (Grant No. 2011021003-1), and the National Basic Research Program of China (Grant No. 2010CB923102).

Electromagnetically induced grating in a four-level tripod-type atomic system

Dong Ya-Bin (董雅宾), Guo Yao-Hua (郭耀华)

Department of Physics, Shanxi University, Taiyuan 030006, China

Received:2013-11-18 Revised:2014-02-24 Online:2014-07-15 Published:2014-07-15
Contact: Dong Ya-Bin E-mail:ybdong@sxu.edu.cn
About author:42.50.Gy; 42.65.An
Supported by:
Project supported by the National Natural Science Foundation of China (Grants Nos. 11004126 and 61275212), the Natural Science Foundation of Shanxi Province, China (Grant No. 2011021003-1), and the National Basic Research Program of China (Grant No. 2010CB923102).

摘要/Abstract

摘要： An electromagnetically induced grating in a four-level tripod-type atomic system is studied theoretically. By virtue of a weak standing-wave signal field, the phase modulation effectively diffracts a weak probe field into the first-order direction. By changing the weak signal field, the diffraction of the weak probe field can be modulated in real time, and a first-order diffraction efficiency of more than 32% can be obtained with proper parameters. Such a system has a potential application in an all-optical switch controlled by a weak optical signal.

关键词: electromagnetically induced grating, phase modulation, first-order diffraction efficiency

Abstract: An electromagnetically induced grating in a four-level tripod-type atomic system is studied theoretically. By virtue of a weak standing-wave signal field, the phase modulation effectively diffracts a weak probe field into the first-order direction. By changing the weak signal field, the diffraction of the weak probe field can be modulated in real time, and a first-order diffraction efficiency of more than 32% can be obtained with proper parameters. Such a system has a potential application in an all-optical switch controlled by a weak optical signal.

Key words: electromagnetically induced grating, phase modulation, first-order diffraction efficiency

中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

42.50.Gy

42.65.An (Optical susceptibility, hyperpolarizability)

董雅宾, 郭耀华. Electromagnetically induced grating in a four-level tripod-type atomic system[J]. 中国物理B, 2014, 23(7): 74204-074204.

Dong Ya-Bin (董雅宾), Guo Yao-Hua (郭耀华). Electromagnetically induced grating in a four-level tripod-type atomic system[J]. Chin. Phys. B, 2014, 23(7): 74204-074204.

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Electromagnetically induced grating in a four-level tripod-type atomic system

Electromagnetically induced grating in a four-level tripod-type atomic system

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