Vortex structures in the photoelectron momentum distributions of negative hydrogen ions induced by a short laser pulse

Jianhong Chen; Xiaoping Zheng; Tianyun Zhang

doi:10.1117/12.2547654

18 December 2019 Vortex structures in the photoelectron momentum distributions of negative hydrogen ions induced by a short laser pulse

Jianhong Chen, Xiaoping Zheng, Tianyun Zhang

Author Affiliations +

Proceedings Volume 11333, AOPC 2019: Advanced Laser Materials and Laser Technology; 1133314 (2019) https://doi.org/10.1117/12.2547654
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

We theoretically study the photoelectron momentum distributions of the negative hydrogen ions by a pair of time-delayed circularly polarized laser pulses. It is found that the multi-arm helical vortex structures appear in the photoelectron momentum distributions. Moreover, the vortex structures can be adjusted by the laser parameters. The present work is meaningful for the optical control of the laser-induced detachment of negative ions.

Citation Download Citation

Jianhong Chen, Xiaoping Zheng, and Tianyun Zhang "Vortex structures in the photoelectron momentum distributions of negative hydrogen ions induced by a short laser pulse", Proc. SPIE 11333, AOPC 2019: Advanced Laser Materials and Laser Technology, 1133314 (18 December 2019); https://doi.org/10.1117/12.2547654

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