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

页码：2505 / 2508

页数：4

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