Effect of spin–orbit coupling on the ionization of Xe atom by quantum-field scattering theory

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-03-28 DOI:10.1016/j.optcom.2025.131772

Xianghe Ren , Jingtao Zhang

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引用次数: 0

Abstract

We present a theoretical investigation of spin–orbit coupling effects on the ionization of Xe atom in corotating two-color (CoRTC) and counter-rotating two-color (CRTC) circularly polarized laser fields. Through implementation of quantum-field scattering theory, we develop an ionization matrix element formalism that incorporates both spin–orbit interactions and fractional spherical harmonic functions, thereby extending beyond conventional frameworks employing integer-order spherical harmonics. By calculating ionization yields across various spin–orbit coupled states, we find that these yields are significantly influenced by the spin–orbit coupling. Specifically, for

m = 0

the ionization yields are notably suppressed, especially in the polarization plane at

θ = 90 °

. We explain these phenomena through a theoretical approach combining generalized phased Bessel functions with fractional spherical harmonic functions.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.