Polarization of attosecond pulses generated by two-color laser fields. Issue 7 (January 2020)

• Record Type: Journal Article
• Authors: Zhu, M F; Wang, G L; Zhao, S F; Li, X Y; Zhou, X X
• Is Part Of: Journal of physics. Volume 1412:Issue 7(2019)
• Publication Date: 2020-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1412/7/072029
• Languages: English
• ISSNs: 1742-6588

Abstract

Synopsis: We propose a circular-elliptical laser field, which consists of a circularly polarized field with its copla-nar counter-rotating elliptical third harmonic pulse, to generate polarized high-order harmonics and attosecond pulses (APs) by He atom. We show that the polarization of APs depends evidently on the ellipticity ξ of harmonic laser field. Most importantly, nearly circular APs can be obtained with a proper ξ . Our results contribute to the generation of high elliptically polarized APs with s-state atom.