2) velocity_selective coherent population trapping
速度选择相干布居俘获
1.
We present in this paper a detailed discussion of the velocity_selective coherent population trapping of an atomic system in a nondegenerate Λ three_level configuration.
研究了非简并Λ型三能级原子速度选择相干布居俘获与原子能级结构的非对称性以及原子-激光失谐之间的关系。
3) coherent population trapping
相干布居捕获
1.
Atom coherence and quantum interference have led to many interesting optical phenomena such as coherent population trapping (CPT), electromagnetic-induced transparency, laser without inversion and control of spontaneous emission.
原子相干和量子干涉已经引起许多有趣的光学现象,例如相干布居捕获、电磁诱导透明、无反转激光、以及自发辐射的控制等等。
2.
The atomtic coherence effects has one of the important forward subjects in laser physics and quantum optics, recent studies has shown that the quantum coherence and interference has led to a lot of new effects such as electromag-netically induced transparency, coherent population trapping, switching from subluminal propagation to superluminal propagation, etc.
本文研究了原子相干效应:一是在单个相干泵浦场驱动的近简并V系统中获得慢光速到超光速的转换,二是在不满足相干布居捕获条件下,我们可以在A系统和级联系统里获得有效的参量放大。
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。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条