摘要
利用自行研制的脉冲直流放电装置产生ＳＦ２自由基，结合共振增强多光子电离（ＲＥＭＰＩ）技术，研究了２７２—２９４ｎｍ范围内ＳＦ２自由基（２＋１）ＲＥＭＰＩ激发谱，获得了ＳＦ２自由基３ｄ，５ｓ里德伯态相应的带源及被激活的对称伸缩振动模的振动频率，并估算了这些态的量子亏损值．
Abstract A pulsed dc discharge in a pulsed supersonic beam has been developed as an efficient source of producing free radicals.Spectra of the SF 2 radical were observed between 272 and 294nm by (2+1) resonance enhanced multiphoton ionizition (REMPI) spectroscopy.Vibrational progressions associated with 3d and 5s Rydberg states were assigned.The spectroscopic values ω 1′(a 1 ,symmetric stretching),band origin T 0 and quantum defect δ of these Rydberg states were reported.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第11期1776-1782,共7页
Acta Physica Sinica
基金
国家自然科学基金
国家"九五"攀登计划资助
