STUDY OF OPTICAL PUMPING OF ALKALI ATOMIC BEAM IN STRONG MAGNETIC FIELDS

We have gained a very comprehensive set of results for infrared diffraction (10.6μm wavelength) from fabricated single grooves of reflection with widths in the range of 5μm to 65μm. The experimental results show that the diffraction can still occur when the groove width becomes comparable to or less than the wavelength of the probing light. Variations of the diffraction intensities have a very regular sinusoidal relationship with the polarization angle of the incident light; and the diffraction intensities are the when the incident light is TM polarized. However, the diffraction intensities will be a minimum when the incident light is TE polarized; and the biger the diffraction angle, the higher the rate of change of the diffractive intensity with increasing polarization angle of the incident light.     

PRODUCTION OF POLARIZED 7Li ATOMIC BEAM IN STRONG MAGNETIC FIELD BY OPTICAL PUMPING

The production of a polarized ⁷Li atomic beam in a strong magnetic field was experimentally studied by laser optical pumping of a single ground hyperfine F level. It was shown that nearly complete negative and partial positive polarizations of ⁷Li atoms could be realized under appropriate conditions by this pumping scheme, which was in agreement with the rate equation calculations. Based on the analyses of transition probabilities, the maximum polarizations for various transitions and light polarizations were given.     

射频阱中异荷离子云耦合运动的实验分析

在射频肼中,观察到两个相隔很近的射频共振吸收峰.适当改变囚禁电压、检测频率等条件时,两峰相对移动或演变为单峰,其特征可由两异荷离子云的耦合运动加以描述. 关键词：     

六极磁铁选态系统性能分析与实验测量

本文在考虑探测器位置、大小及形状诸因素后,计算了六极磁铁选态系统的两个性能参数:选择性和有效穿透立体角,讨论了它们与系统各参量之间的关系和改善系统性能的途径,并与以前的理论方法进行了比较。还提出一种用激光诱导荧光(LIF)测量六极磁铁选择性的方法,实验结果与理论值符合得很好。 关键词：