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首页> 外文期刊>Review of Scientific Instruments >Cascaded two-photon spectroscopy of Yb atoms with a transportable effusive atomic beam apparatus
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Cascaded two-photon spectroscopy of Yb atoms with a transportable effusive atomic beam apparatus

机译:Yb原子的级联双光子光谱和可移动的发射性原子束装置

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摘要

We present a transportable effusive atomic beam apparatus for cascaded two-photon spectroscopy of the dipole-forbidden transition (6s2 1S0↔ 6s7s 1S0) of Yb atoms. An ohmic-heating effusive oven is designed to have a reservoir volume of 1.6 cm3 and a high degree of atomic beam collimation angle of 30 mrad. The new atomic beam apparatus allows us to detect the spontaneously cascaded two-photons from the 6s7s1S0 state via the intercombination 6s6p3P1 state with a high signal-to-noise ratio even at the temperature of 340 °C. This is made possible in our apparatus because of the enhanced atomic beam flux and superior detection solid angle.
机译:我们提出了一种用于偶极子禁忌跃迁的级联双光子光谱(6s 2 1 S 0 ↔6s7s < Yb原子的sup> 1 S 0 )。欧姆加热喷射炉的设计容积为1.6 cm 3 ,原子束高度为30 mrad。新的原子束设备使我们能够通过6s6p 3 P <的组合从6s7s 1 S 0 状态自发地级联两个光子。即使在340°C的温度下,inf> 1 状态也具有高信噪比。由于增强了的原子束通量和出色的探测立体角,这在我们的设备中成为可能。

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