Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields

doi:10.1088/1674-1056/24/6/063303

中国物理B ›› 2015, Vol. 24 ›› Issue (6): 63303-063303.doi: 10.1088/1674-1056/24/6/063303

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields

吕航^{a b}, 张军峰^{a b}, 左万龙^{a b}, 徐海峰^{a b}, 金明星^{a b}, 丁大军^{a b}

a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
b Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University), Changchun 130012, China

收稿日期:2014-12-24 修回日期:2015-01-09 出版日期:2015-06-05 发布日期:2015-06-05
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2013CB922200) and the National Natural Science Foundation of China (Grant Nos. 11034003 and 11274140).

Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields

Lv Hang (吕航)^{a b}, Zhang Jun-Feng (张军峰)^{a b}, Zuo Wan-Long (左万龙)^{a b}, Xu Hai-Feng (徐海峰)^{a b}, Jin Ming-Xing (金明星)^{a b}, Ding Da-Jun (丁大军)^{a b}

a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
b Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University), Changchun 130012, China

Received:2014-12-24 Revised:2015-01-09 Online:2015-06-05 Published:2015-06-05
Contact: Xu Hai-Feng E-mail:xuhf@jlu.edu.cn
About author:33.80.Rv
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2013CB922200) and the National Natural Science Foundation of China (Grant Nos. 11034003 and 11274140).

摘要/Abstract

摘要： Rydberg state excitations of neutral nitric oxide molecules are studied in strong ultraviolet (UV) and near-infra-red (IR) laser fields using a linear time-of-flight (TOF) mass spectrometer with the pulsed electronic field ionization method. The yield of Rydberg molecules is measured as a function of laser intensity and ellipticity, and the results in UV laser fields are compared with those in near-IR laser fields. The present study provides the first experimental evidence of neutral Rydberg molecules surviving in a strong laser field. The results indicate that a rescattering-after-tunneling process is the main contribution to the formation of Rydberg molecules in strong near-IR laser fields, while multi-photon excitation may play an important role in the strong UV laser fields.

关键词: strong laser fields, neutral Rydberg excitation, nitric oxide

Abstract: Rydberg state excitations of neutral nitric oxide molecules are studied in strong ultraviolet (UV) and near-infra-red (IR) laser fields using a linear time-of-flight (TOF) mass spectrometer with the pulsed electronic field ionization method. The yield of Rydberg molecules is measured as a function of laser intensity and ellipticity, and the results in UV laser fields are compared with those in near-IR laser fields. The present study provides the first experimental evidence of neutral Rydberg molecules surviving in a strong laser field. The results indicate that a rescattering-after-tunneling process is the main contribution to the formation of Rydberg molecules in strong near-IR laser fields, while multi-photon excitation may play an important role in the strong UV laser fields.

Key words: strong laser fields, neutral Rydberg excitation, nitric oxide

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

33.80.Rv

吕航, 张军峰, 左万龙, 徐海峰, 金明星, 丁大军. Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields[J]. 中国物理B, 2015, 24(6): 63303-063303.

Lv Hang (吕航), Zhang Jun-Feng (张军峰), Zuo Wan-Long (左万龙), Xu Hai-Feng (徐海峰), Jin Ming-Xing (金明星), Ding Da-Jun (丁大军). Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields[J]. Chin. Phys. B, 2015, 24(6): 63303-063303.

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Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields

Rydberg excitation of neutral nitric oxide molecules instrong UV and near-IR laser fields

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