摘要
采用三台染料激光器分步激发Ｓｒ原子，利用自电离过程产生离子或电子。当固定第一和第三步激发光之波长而扫描第二步激发光之波长时，便可获得Ｓｒ原子５ｓｎｓ１Ｓ０和５ｓｎｄ１，３Ｄ２系列的光谱。用多通道量子数亏损理论分析和描述实验光谱，不仅成功地证实和预测了已测和未测实验能级及其波函数，而且能够给出这些高激发态的自发辐射寿命。本文的实验和理论结果符合得很好。
Three dye lasers are used to excited Sr atoms to obtain ions and electrons through autoionization process. The wavelength of the second laser is scanned when those of the first and third lasers are fixed, through which spectra of Sr 5sns 1S 0 and 5snd 1, 3 D 2 series are measured. Experimental spectra are described and analyzed by multichannel quantum defect theory, which verifies measured data and predicts unmeasured data with their energies and wave functions. The study also provides radiative lifetimes of highly excited states. Agreement between the theory and experiment is achieved. This work also agrees well with previons studies.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1996年第10期1416-1420,共5页
Acta Optica Sinica
基金
国家自然科学基金
国家教委回国留学人员专项科研基金
浙江大学科研基金资助
关键词
高激发态
能级位置
辐射寿命
锶原子
highly excited state, level of energy, life of radiation.
