Generating intense vortex beams and cylindrical vector beams through the Q-plate-like magnetized plasma
编号:112 访问权限:仅限参会人 更新:2025-04-03 14:38:42 浏览:3次 张贴报告

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摘要
Phase and polarization are regarded as two fundamental physical quantities characterizing optical properties. Recently, vortex beams with helical phasefronts and vector beams exhibiting non-uniform transverse polarization distributions have attracted considerable attention due to its extensive applications, including optical communication, particle acceleration, and laser-plasma instabilities. However, the generation of intense vortex and vector beams has been limited by the ionization threshold of conventional optical devices. To address this limitation, we propose a novel approach that utilizes a Q-plate-like magnetized plasmas to generate intense vortex beams and vector beams. This approach employs pump lasers to directly accelerate electrons, generating longitudinal currents that induce azimuthal magnetic fields, forming plasma Q-plates. The resultant plasma Q-plates interact reciprocally with the pump laser, converting it into vortex beams. Furthermore, such azimuthally magnetized plasmas can function as plasma polarizers, manipulating polarization distribution through refractive index control of ordinary and extraordinary waves, ultimately generating cylindrical vector beams. This method enables generation of ultra-high power vortex and vector beams without relying on precision optical components, paves the way towards the potential applications of structured light in strong-field physics.
 
关键词
cylindrical vector beams,votex beams,magnetized plasma
报告人
程佳豪
学生 中国科学技术大学核科学技术学院

稿件作者
程佳豪 中国科学技术大学核科学技术学院
JiaQing University of Science and Technology of China
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重要日期
  • 会议日期

    05月12日

    2025

    05月15日

    2025

  • 03月26日 2025

    初稿截稿日期

  • 04月30日 2025

    提前注册日期

  • 05月15日 2025

    注册截止日期

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