紀要論文

超流動ヘリウム中イオンのレーザー分光に向けた 液体中アブレーション法による Ba+の発光観測

jpn

21879923

https://doi.org/10.15002/00014347

法政大学大学院理工学・工学研究科

58

1

5

2017-03-31

Version of Record

ヘッダー部分に誤記 ; (誤) 法政大学大学院理工学・工学研究科紀要 (正) 法政大学大学院紀要. 理工学・工学研究科編

We aim to study the energy level structures of atomic ions in superfluid helium. These impurity ions are expected to show interesting features due to the interaction between ions and surrounding helium atoms. To establish the method to introduce ions into superfluid helium, we have examined the effectiveness of the laser ablation in liquids. A solid sample of barium is placed in a quartz cell filled with superfluid helium and ablated by the second- and third-harmonic generations of a Nd:YAG laser. We have successfully observed fluorescence signal from Ba ions produced by laser ablation in the observation region. Difference in the production efficiencies of Ba ions by the wavelength of the ablation laser is discussed. Key Words : laser spectroscopy, laser ablation, barium ions, superfluid helium.

Article

AA12677220