中国物理B ›› 2019, Vol. 28 ›› Issue (1): 14702-014702.doi: 10.1088/1674-1056/28/1/014702

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Double-slit interference of a relativistic vortex laser

Hao Zhang(张浩), Bai-Fei Shen(沈百飞), Lin-Gang Zhang(张林港)   

  1. 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Department of Physics, Shanghai Normal University, Shanghai 200234, China
  • 收稿日期:2018-09-10 修回日期:2018-10-24 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: Bai-Fei Shen, Lin-Gang Zhang E-mail:bfshen@mail.shcnc.ac.cn;lgzhang@siom.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11335013, 11575274, 11674339, and 61805266), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16), the Ministry of Science and Technology of the People's Republic of China (Grant Nos. 2016YFA0401102 and 2018YFA0404803), and the Innovation Program of the Shanghai Municipal Education Commission, China (Grant No. 201701070002E00032).

Double-slit interference of a relativistic vortex laser

Hao Zhang(张浩)1,2, Bai-Fei Shen(沈百飞)1,2,3, Lin-Gang Zhang(张林港)1   

  1. 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Department of Physics, Shanghai Normal University, Shanghai 200234, China
  • Received:2018-09-10 Revised:2018-10-24 Online:2019-01-05 Published:2019-01-05
  • Contact: Bai-Fei Shen, Lin-Gang Zhang E-mail:bfshen@mail.shcnc.ac.cn;lgzhang@siom.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11335013, 11575274, 11674339, and 61805266), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16), the Ministry of Science and Technology of the People's Republic of China (Grant Nos. 2016YFA0401102 and 2018YFA0404803), and the Innovation Program of the Shanghai Municipal Education Commission, China (Grant No. 201701070002E00032).

摘要:

The interference of a relativistic vortex laser is investigated for the case when a linearly polarized Laguerre-Gaussian pulse impinges on a double-slit solid target. Three-dimensional particle-in-cell simulation results show that the interference fringes of high-order harmonics are twisted, similar to that of the fundamental vortex laser. The twisting order of the interference pattern is determined by the order of the vortex high-order harmonics, which can be explained by the classic double-slit interference models. The usual double-slit interference has been extended to the regime of relativistic intensity, which may have potential applications for measuring the topological charge of vortex high-order harmonics.

关键词: optical vortices, fringes analysis, harmonics

Abstract:

The interference of a relativistic vortex laser is investigated for the case when a linearly polarized Laguerre-Gaussian pulse impinges on a double-slit solid target. Three-dimensional particle-in-cell simulation results show that the interference fringes of high-order harmonics are twisted, similar to that of the fundamental vortex laser. The twisting order of the interference pattern is determined by the order of the vortex high-order harmonics, which can be explained by the classic double-slit interference models. The usual double-slit interference has been extended to the regime of relativistic intensity, which may have potential applications for measuring the topological charge of vortex high-order harmonics.

Key words: optical vortices, fringes analysis, harmonics

中图分类号:  (Vortex interactions)

  • 47.32.cb
52.35.-g (Waves, oscillations, and instabilities in plasmas and intense beams) 42.25.Hz (Interference)