Realization of low frequency and controllable bandwidth squeezing based on a four-wave-mixing amplifier in rubidium vapor

被引：61
|
作者：
Liu, Cunjin [1 ,2 ]
Jing, Jietai [1 ,2 ]
Zhou, Zhifan [1 ,2 ]
Pooser, Raphael C. [3 ]
Hudelist, Florian [1 ,2 ]
Zhou, Lu [1 ,2 ]
Zhang, Weiping [1 ,2 ]
机构：
[1] E China Normal Univ, Dept Phys, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
[2] E China Normal Univ, Dept Phys, Quantum Inst Light & Atoms, Shanghai 200062, Peoples R China
[3] Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA
来源：
OPTICS LETTERS | 2011年 / 36卷 / 15期
基金：
中国国家自然科学基金;
关键词：
STATES;
D O I：
10.1364/OL.36.002979
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally demonstrate the creation of two correlated beams generated by a nondegenerate four-wave-mixing amplifier at lambda = 795 nm in hot rubidium vapor. We achieve intensity difference squeezing at frequencies as low as 1.5 kHz which is so far the lowest frequency to observe squeezing in an atomic system. The squeezing spans from 5.5 to 16.5 MHz with a maximum squeezing of -5 dB at 1 MHz. We can control the squeezing bandwidth by changing the pump power. Both low frequency and controllable bandwidth squeezing show great potential in sensitivity detection and precise control of the atom optics measurement. (C) 2011 Optical Society of America
引用
收藏
页码：2979 / 2981
页数：3
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