Time-of-flight detection of ultra-cold atoms using resonant frequency modulation imaging

被引：13
|
作者：
Hardman, K. S. [1 ]
Wigley, P. B. [1 ]
Everitt, P. J. [1 ]
Manju, P. [1 ]
Kuhn, C. C. N. [1 ]
Robins, N. P. [1 ]
机构：
[1] Australian Natl Univ, Res Sch Phys & Engn, Dept Quantum Sci, Quantum Sensors & Atomlaser Lab, Canberra, ACT 2601, Australia
来源：
OPTICS LETTERS | 2016年 / 41卷 / 11期
基金：
澳大利亚研究理事会;
关键词：
SPECTROSCOPY; PROBE;
D O I：
10.1364/OL.41.002505
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Resonant frequency modulation imaging is used to detect free falling ultra-cold atoms. A theoretical comparison of fluorescence imaging (FI) and frequency modulation imaging (FMI) is made, indicating that for low optical depth clouds, FMI accomplished a higher signal-to-noise ratio under conditions necessary for a 200 mu m spatially resolved atom interferometer. A 750 ms time-of-flight measurement reveals near atom shot-noise limited number measurements of 2 x 10(6) Bose-condensed Rb-87 atoms. The detection system is applied to high precision spinor BEC based atom interferometer. (C) 2016 Optical Society of America
引用
收藏
页码：2505 / 2508
页数：4
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