发明名称 |
TWO-DIMENSIONAL MAGNETO-OPTICAL TRAP FOR NEUTRAL ATOMS |
摘要 |
A two-dimensional (2D) magneto-optical trap (MOT) for alkali neutral atoms establishes a zero magnetic field along the longitudinal symmetry axis. Two of three pairs of trapping laser beams do not follow the symmetry axes of the quadruple magnetic field and are aligned with a large non-zero degree angles to the longitudinal axis. In a dark-line 2D MOT configuration, there are two orthogonal repumping beams. In each repumping beam, an opaque line is imaged to the longitudinal axis, and the overlap of these two line images creates a dark line volume in the longitudinal axis where there is no repumping light. The zero magnetic field along the longitudinal axis allows the cold atoms maintain a long ground-state coherence time without switching off the MOT magnetic field, which makes it possible to operate the MOT at a high repetition rate and a high duty cycle. |
申请公布号 |
US2013048846(A1) |
申请公布日期 |
2013.02.28 |
申请号 |
US201213598129 |
申请日期 |
2012.08.29 |
申请人 |
DU SHENGWANG;ZHANG SHANCHAO;ZHOU SHUYU;YIN GUANG YU;BELTHANGADY CHINMAY;THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY;THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY |
发明人 |
DU SHENGWANG;ZHANG SHANCHAO;ZHOU SHUYU;YIN GUANG YU;BELTHANGADY CHINMAY |
分类号 |
G02B27/00 |
主分类号 |
G02B27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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