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1)  coherent population trapping
相干布居囚禁
1.
Based on the model of the Λ-type three-level atomic system,the coherent population trapping(CPT) phenomenon is analyzed by semi-classical density matrix approach.
在Λ型三能级原子系统模型的基础上,采用半经典的密度矩阵方法分析了87Rb气体的相干布居囚禁现象。
2.
Based on the model of the Λ-type three-level atomic system,the impact of laser parameters on the CPT signals of rubidium atomic clock is analyzed by using the semi-classical density matrices approach in order to make a concrete analysis of the influence of laser parameters upon the stability performance of the CPT(coherent population trapping)atomic clock,and the comparison is presented.
为具体分析激光参量对相干布居囚禁(CPT)原子钟的稳定度性能的影响,在Λ-型三能级原子系统模型的基础上,采用半经典密度矩阵方法,数值模拟计算了不同激光参量对CPT铷原子钟共振谱线信号的影响,并给出了比较分析。
3.
We present the locking laser frequency on a Doppler absorption peak for the small size coherent population trapping (CPT) atomic frequency standard by using digital control circuit with a field-programmable gate array (FPGA) core.
介绍了为实现小型化相干布居囚禁(CPT)原子频标的激光频率锁定,用以现场可编程门阵列(FPGA)为核心的数字控制电路将激光频率锁定在多普勒吸收峰的工作。
2)  Coherent population trapping
相干布居数囚禁
1.
We present theoretical analysis and experimental results of coherent population trapping within Zeeman sublevels of rubidium under Hanle configuration, and bichromatic dark states are firstly observed in the experiment.
本论文从理论和实验角度阐述了铷原子Hanle构型下塞曼子能级相干布居数囚禁实验,首次在实验过程中发现了双暗态结构。
3)  CPT clock
相干布居囚禁频标
1.
Presently,the technique schemes for CPT clock include the traditional programme,adopting micro-electro-mechanical system(MEMS)technique for physical package,and adopting MEMS techn.
目前相干布居囚禁频标的技术方案有:传统方案,物理系统采用MEMS(micro-electro-mechanical system)[0]技术的方案和整机采用MEMS[0]技术的方案。
4)  population trapping
布居囚禁
1.
A process of four photon three step resonant ionization is investigated in terms of dressed atom model, and a kind of population trapping is found which is independent to the ionizing rate.
采用辍饰原子模型研究了四光子三步共振离化过程的布居囚禁,发现了一种与离化速率无关的布居囚禁。
2.
The critical criterion for realizing population trapping is deduced for a two-level system driven by a frequency-modulated laser field in terms of dressed atom model, followed by demonstrating the various population trapping behaviours under different conditions.
采用缀饰原子模型 ,以解析方式研究了二能级系统布居囚禁现象 ,给出了实现布居囚禁现象的条件 ,并通过解析公式计算演示了各种条件下布居囚禁的不同行为 。
5)  Coherent population trapping (CPT)
相干布局数囚禁
6)  coherent trapping
相干囚禁
1.
Consider a Λ atom in a circularly polarized electromagnetic wave,there is a coherent superposition of its two lower states such that when the atom is initially in this superposed state,the atom will generate coherent trapping phenomenon.
考虑了在圆极化光中的Λ 原子 ,存在着由其两个基态构造的一个特殊的相干叠加态 ,当原子归初处于这个态时 ,原子将发生相干囚禁
补充资料:相干散射和非相干散射
      再辐射的光量子频率和被吸收的光量子频率准确相等的散射过程称为相干散射。在相干散射的情况下,源函数准确地等于平均辐射强度。再辐射的光量子频率和被吸收的光量子频率不相等的散射过程称为非相干散射。在天体物理中,存在一系列因素使散射过程成为非相干散射。主要的因素是:原子的能级有一定的宽度、原子的热运动和湍动以及压力效应等。对于非相干散射,源函数是相当复杂的。
  

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