【摘要】 报道在镁金属蒸气中利用两束激光三光子共振激发原子３ｓｎｐ１Ｐ中高里德堡态时，观察到随泵浦激光功率的增强，出现３ｓ４ｓ１Ｓ０－３ｓｎｓ１Ｓ０、３ｓｎｄ１Ｄ２（ｎ≈１８～３２）偶宇称态偶极禁戒跃迁增强，以及３ｓｎｓ１Ｓ０能级移动现象，并解释为光泵过程引起的原子激发态碰撞效应。利用禁戒跃迁首次测定了Ｍｇ３ｓｎｓ１Ｓ０（ｎ＝２２～３０）能级。更多还原

【Abstract】 Via two laser beams three-photon excited MgI high Rydberg states,the 3s4s 1S0- 3sns 1S0 3snd 1D2 forbidden transition and 3sns 1S0 line shift induced by laser intensity have been observed in Mg vaPOur. The results were interpreted as a collision effect of excited state atoms.Mg Ⅰ 3sns 1S0(n= 22- 30 ) energy levels have been measured by forbidden transition.更多还原