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Quantum beat method with two-photon absorption scheme in hyperfine-structure investigation of highly excited 2Dj states of alkali metal atoms

机译：双光子吸收方案的量子拍方法在碱金属原子的高激发2Dj态的超精细结构研究中

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Abstract: In investigations of hyperfine structure (hfs) by the quantum beat method, the two-photon excitation scheme was introduced to attain a number of highly excited $+2$/D$-J$/ states of some alkali metal isotopes ($+39$/K, $+41$/K, $+85$/Rb and $+87$/Rb). In the present paper some details of the experimental technique are presented. The value of the magnetic- dipole interaction constant A and the electric-quadrupole interaction constant B, obtained in a series of experiments for the states of interest (6$+2$/D$-3/2,5/2$/ of $+39$/K, 6$+2$/D$- 3/2$/ of $+41$/K, 11,12$+2$/D$-3/2$/ of $+85$/Rb, 10-13$+2$/D$-3/2$/ and 9- 13$+2$/D$-5/2$/ of $+87$/Rb) are summarized and compared with other results concerning hfs of the D states of the same isotopes. The relatively simple method proved to be quite effective in extending the measurements of hyperfine interaction constants to highly excited $+2$/D$-J$/ states of alkali metal atoms.!26
机译：摘要：在量子拍方法研究超精细结构（hfs）时，引入了双光子激发方案以获得一些碱金属同位素（$$）的高激发$ + 2 $ / D $ -J $ /态。 + 39 $ / K，$ + 41 $ / K，$ + 85 $ / Rb和$ + 87 $ / Rb）。本文介绍了实验技术的一些细节。磁偶极相互作用常数A和四极相互作用常数B的值，是通过一系列感兴趣状态的实验获得的（6 $ + 2 $ / D $ -3 / 2,5 / 2 $ / $ + 39 $ / K，6 $ + 2 $ / D $-3/2 $ / $ + 41 $ / K，11,12 $ + 2 $ / D $ -3 / 2 $ / $ + 85 $ / Rb，$ 87（$ Rb）中的10-13 $ + 2 $ / D $ -3 / 2 $ /和9-13 $ + 2 $ / D $ -5 / 2 $ /）关于相同同位素D状态的hfs的结果。事实证明，相对简单的方法对于将超精细相互作用常数的测量范围扩展到碱金属原子的高激发$ + 2 $ / D $ -J $ /状态非常有效。26

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