Enhancement and suppression of spatial splitting four-wave mixing in atomic medium

doi:10.1088/1674-1056/21/2/024204

中国物理B ›› 2012, Vol. 21 ›› Issue (2): 24204-024204.doi: 10.1088/1674-1056/21/2/024204

庄雨茗¹,桑苏玲¹ ²,李培英¹,袁晨智¹,霍淑利¹,薛鑫鑫¹,王志国¹,郑淮斌¹,张彦鹏¹

收稿日期:2011-07-22 修回日期:2011-08-19 出版日期:2012-01-30 发布日期:2012-01-30
通讯作者: 张彦鹏,ypzhang@mail.xjtu.edu.cn E-mail:ypzhang@mail.xjtu.edu.cn

Enhancement and suppression of spatial splitting four-wave mixing in atomic medium

Zhuang Yu-Ming(庄雨茗)^a), Sang Su-Ling(桑苏玲)^a)b), Li Pei-Ying(李培英)^a), Yuan Chen-Zhi(袁晨智)^a), Huo Shu-Li(霍淑利)^a), Xue Xin-Xin(薛鑫鑫)^a), Wang Zhi-Guo(王志国)^a), Zheng Huai-Bin(郑淮斌)^a), and Zhang Yan-Peng(张彦鹏)^a)†

a. Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China;
b. School of Physics and Information Technology, Ningxia Teachers University, Guyuan 756000, China

Received:2011-07-22 Revised:2011-08-19 Online:2012-01-30 Published:2012-01-30
Contact: Zhang Yan-Peng,ypzhang@mail.xjtu.edu.cn E-mail:ypzhang@mail.xjtu.edu.cn
Supported by:
Project supported by the 973 Program of China (Grant No. 2012CB921804), the National Natural Science Foundation of China (Grant Nos. 10974151, 61078002, 61078020, 11104214, 61108017, and 11104216), the New Century Excellent Talent Project of the Ministry of Education of China (Grant No. 08-0431), and the Interdisciplinary Project of Xi’an Jiaotong University, China (Grant Nos. xjj20100100 and xjj20100151).

摘要/Abstract

Abstract: We experimentally report on the evolution from singly-dressed to doubly-dressed four-wave mixing (FWM) process by controlling the powers of the probe, the pump and the dressing fields respectively. The differences in the enhancement and the suppression of FWM signal between the two-level and cascade three-level atomic systems are observed and explained by the multi-dressed effect theoretically. Both the x direction and the y direction spatial splittings of the degenerate-FWM (DWFM) beams are obtained. We also investigate the switch between the enhancement and the suppression of the DWFM signals and between its spatial splittings in x direction and y direction. The spatial splittings in x direction and y direction can be controlled by the relative position and the intensity of the involved laser beams. Such a study can be useful for optimizing the efficiency of the FWM process and providing potential applications in spatial signal processing.

Key words: four-wave mixing, spatial splitting, enhancement, suppression

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

42.50.Gy

庄雨茗, 桑苏玲, 李培英, 袁晨智, 霍淑利, 薛鑫鑫, 王志国, 郑淮斌, 张彦鹏. [J]. 中国物理B, 2012, 21(2): 24204-024204.

Zhuang Yu-Ming(庄雨茗), Sang Su-Ling(桑苏玲), Li Pei-Ying(李培英), Yuan Chen-Zhi(袁晨智), Huo Shu-Li(霍淑利), Xue Xin-Xin(薛鑫鑫), Wang Zhi-Guo(王志国), Zheng Huai-Bin(郑淮斌), and Zhang Yan-Peng(张彦鹏) . Enhancement and suppression of spatial splitting four-wave mixing in atomic medium[J]. Chin. Phys. B, 2012, 21(2): 24204-024204.

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Enhancement and suppression of spatial splitting four-wave mixing in atomic medium

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