均匀和非均匀偏振分布Bessel光束的单光束实现

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关键词：模式提取；Bessel光；光学笔；均匀偏振；非均匀偏振中图分类号：TN929.11;O43 文献标识码：Adoi：10.37188/OPE.20253310.1524 CSTR：32169.14.OPE.20253310.1524

Single-beam implementation of uniform and non-uniformlypolarizedBesselbeams

YINLiang，YAO Kailing，SUN Xun，ZHANG Jingqian，ZHU Lewen， YANGHaojie，GAO Xiumin*，ZHUANG Songlin

（School of Optical-Electrical and Computer Engineering，University of Shanghai for Science and Technology，Shanghai 2Ooo93，China） * Corresponding author， E -mail：gxm@usst. edu. cn

Abstract： Due to its unique properties，the Bessel beam has a wide range of applications in numerous fields.Currently，researchers are devoting themselves to developing methods capable of dynamically controling the polarization state.However，extracting andcontroling the polarization state modes of arbitrary orders from a single incident beam has always been a challenge. This paper proposed a novel method based on the mode extraction principle of the optical pen，which successfully generated Bessel beams with uniform and non-uniform polarization states，thus overcoming this difficulty. This method did not require changing the polarization state of the incident vector beam. Instead，it directly extracted Bessel beams with arbitrary polarization modes from high-order vector vortex beams.By utilizing the optical pen technology，the number，position，amplitude，and phase of vector Bessel beams could be arranged flexibly. The experimental results were in high agreement with the theoretical predictions. This research not only holds greatsignificance for the in-depth understanding of the polarization characteristics of Bessel beams but also is expected to promotetechnological advancements in fields such as optical imaging，optical communica tion，and particle manipulation.

Key words：mode extraction principle；Bessel beam；optical pen；uniform polarization；non-uniform polarization

1引言

光束偏振特性作为光学精密调控的核心参量，其空间分布直接影响光场与物质相互作用的能量传递效率和空间选择性。（剩余12958字）