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Isotope Shifts of Nitrogen around 800 nm
Jiao Bai,Hai-ling Wang,Xue Ni,Lun-hua Deng
Author NameAffiliationE-mail
Jiao Bai State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China  
Hai-ling Wang State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China hlwang@phy.ecnu.edu.cn 
Xue Ni State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China  
Lun-hua Deng State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China lhdeng@phy.ecnu.edu.cn 
Abstract:
The Doppler-limited absorption spectra of 14N and 15N atoms were measured around 800 nm using concentration modulation spectroscopy to study their isotope shifts. The nitrogen atoms were generated by discharging molecular nitrogen buffered with helium in a homemade discharge tube. The isotope shifts of four multiplets (3s4PJ→3p4DJo, 3s4PJ→3p4PJo, 3s2DJ→5s2PJo, and 3p2PJo→5s2DJo) were measured and their J-dependent specific mass shifts were observed and discussed.
Key words:  Doppler-limited absorption spectra  Isotope shifts  Specific mass shifts  J-dependence
FundProject:
氮原子在800 nm附近的同位素位移
白皎,汪海玲,倪雪,邓伦华
摘要:
利用浓度调制的光谱技术,测量了14N和15N原子在800 nm附近的多普勒受限吸收光谱,用于研究N和N原子的同位素位移。在放电管中,通过对氮气和其载气氦气的混合气体放电产生氮原子。测量了氮原子的四个跃迁(3s4PJ→3p4DJo,3s4PJ→3p4PJo,3s2DJ→5s2PJo,和3p2PJo→5s2DJo)的同位素位移,并观测和讨论了相应的特殊质量位移对$J$量子数的依赖关系.
关键词:  多普勒受限吸收光谱  同位素位移  特殊质量位移  J-依赖关系
DOI:10.1063/1674-0068/29/cjcp1602035
分类号: