Control of electron localization in the dissociation of H2+ and its isotopes with a THz pulse

doi:10.1088/1674-1056/24/1/013204

›› 2015, Vol. 24 ›› Issue (1): 13204-013204.doi: 10.1088/1674-1056/24/1/013204

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Control of electron localization in the dissociation of H₂⁺ and its isotopes with a THz pulse

贾正茂^a, 曾志男^a, 李儒新^a, 徐至展^a, 邓蕴沛^b

a State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
b Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany

收稿日期:2014-06-24 修回日期:2014-08-22 出版日期:2015-01-05 发布日期:2015-01-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 60921004, 11134010, 11222439, 11227902, and 61108012) and the National Basic Research Program of China (Grant No. 2011CB808103).

Control of electron localization in the dissociation of H₂⁺ and its isotopes with a THz pulse

Jia Zheng-Mao (贾正茂)^a, Zeng Zhi-Nan (曾志男)^a, Li Ru-Xin (李儒新)^a, Xu Zhi-Zhan (徐至展)^a, Deng Yun-Pei (邓蕴沛)^b

a State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
b Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany

Received:2014-06-24 Revised:2014-08-22 Online:2015-01-05 Published:2015-01-05
Contact: Zeng Zhi-Nan E-mail:zhinan_zeng@mail.siom.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 60921004, 11134010, 11222439, 11227902, and 61108012) and the National Basic Research Program of China (Grant No. 2011CB808103).

摘要/Abstract

摘要： The molecular dissociation with a two-laser-pulse scheme is theoretically investigated for the hydrogen molecular ion (H₂⁺) and its isotopes (HD⁺ and HT⁺). The terahertz pulse is used to steer the electron motion after it has been excited by an ultrashort ultraviolet laser pulse and an unprecedented electron localization ratio can be achieved. With the coupled equations, the mass effect of the nuclei on the effective time of the electron localization control is discussed.

关键词: dissociation probability, hydrogen molecular ion, terahertz pulse, time-dependent Schrö, dinger equation

Abstract: The molecular dissociation with a two-laser-pulse scheme is theoretically investigated for the hydrogen molecular ion (H₂⁺) and its isotopes (HD⁺ and HT⁺). The terahertz pulse is used to steer the electron motion after it has been excited by an ultrashort ultraviolet laser pulse and an unprecedented electron localization ratio can be achieved. With the coupled equations, the mass effect of the nuclei on the effective time of the electron localization control is discussed.

Key words: dissociation probability, hydrogen molecular ion, terahertz pulse, time-dependent Schrödinger equation

中图分类号: (Multiphoton ionization and excitation to highly excited states)

32.80.Rm

33.80.Rv (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)) 42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)

贾正茂, 曾志男, 李儒新, 徐至展, 邓蕴沛. Control of electron localization in the dissociation of H₂⁺ and its isotopes with a THz pulse[J]. , 2015, 24(1): 13204-013204.

Jia Zheng-Mao (贾正茂), Zeng Zhi-Nan (曾志男), Li Ru-Xin (李儒新), Xu Zhi-Zhan (徐至展), Deng Yun-Pei (邓蕴沛). Control of electron localization in the dissociation of H₂⁺ and its isotopes with a THz pulse[J]. Chin. Phys. B, 2015, 24(1): 13204-013204.

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Control of electron localization in the dissociation of H₂⁺ and its isotopes with a THz pulse

Control of electron localization in the dissociation of H₂⁺ and its isotopes with a THz pulse

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