Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules

doi:10.1088/1674-1056/28/5/053301

中国物理B ›› 2019, Vol. 28 ›› Issue (5): 53301-053301.doi: 10.1088/1674-1056/28/5/053301

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇下一篇

Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules

Rui Wang(王瑞), Shi-Wen Zhang(张世文), Yang Liu(刘洋), Tian Sun(孙添), Hang Lv(吕航), Hai-Feng Xu(徐海峰)

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

收稿日期:2019-01-02 修回日期:2019-01-31 出版日期:2019-05-05 发布日期:2019-05-05
通讯作者: Hang Lv, Hai-Feng Xu E-mail:lvhang0811@jlu.edu.cn;xuhf@jlu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11534004, 11874179, and 11704149) and the Natural Science Foundation of Jilin Province, China (Grant No. 20180101289JC).

Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules

Rui Wang(王瑞), Shi-Wen Zhang(张世文), Yang Liu(刘洋), Tian Sun(孙添), Hang Lv(吕航), Hai-Feng Xu(徐海峰)

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

Received:2019-01-02 Revised:2019-01-31 Online:2019-05-05 Published:2019-05-05
Contact: Hang Lv, Hai-Feng Xu E-mail:lvhang0811@jlu.edu.cn;xuhf@jlu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11534004, 11874179, and 11704149) and the Natural Science Foundation of Jilin Province, China (Grant No. 20180101289JC).

摘要/Abstract

摘要：

Ionization of molecules in femtosecond laser fields is the most fundamental and important step of various strong-field physical processes. In this study, we experimentally investigate strong field ionization of linear N₂O molecules using a time-of-flight mass spectrometer in 800-nm laser fields. Yields of the parent ion and different fragment ions are measured as a function of laser intensity in the range of 2.0×10¹³ W/cm² to 3.6×10¹⁴ W/cm². We also investigate the dependence of strong field ionization and dissociation of N₂O on laser ellipticity and polarization direction. The significant role of laser induced electron re-collision in the formation of highly charged fragment ions is proved. The physical mechanism of strong field ionization and fragmentation is discussed, based on our experimental results.

关键词: strong laser field, re-collision, angular distribution, nitrous oxide

Abstract:

Key words: strong laser field, re-collision, angular distribution, nitrous oxide

中图分类号: (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))

33.80.Rv

王瑞, 张世文, 刘洋, 孙添, 吕航, 徐海峰. Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules[J]. 中国物理B, 2019, 28(5): 53301-053301.

Rui Wang(王瑞), Shi-Wen Zhang(张世文), Yang Liu(刘洋), Tian Sun(孙添), Hang Lv(吕航), Hai-Feng Xu(徐海峰). Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules[J]. Chin. Phys. B, 2019, 28(5): 53301-053301.

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Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules

Effect of laser polarization on strong-field ionization and fragmentation of nitrous oxide molecules

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