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

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

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

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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.

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《中国物理：英文版》 |2012年第2期|309-316|共8页
作者
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;
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作者单位

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;

School of Physics and Information Technology;

Ningxia Teachers University;

Guyuan 756000;

China;

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原文格式 PDF
正文语种 chi
中图分类非线性光学（强光与物质的作用）;原子物理学;
关键词
空间分割; 原子介质; 四波混合; 三能级原子系统; 压制; 空间信号处理; 四波混频; FM信号;

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

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