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

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

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.

Keywords: dissociation probability hydrogen molecular ion terahertz pulse time-dependent Schrödinger equation

Received: 24 June 2014
Revised: 22 August 2014
Accepted manuscript online:

PACS:	32.80.Rm	(Multiphoton ionization and excitation to highly excited states)
	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)

Fund: 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).

Corresponding Authors: Zeng Zhi-Nan
E-mail: zhinan_zeng@mail.siom.ac.cn

Cite this article:

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 2015 Chin. Phys. B 24 013204

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

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