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随机的metalens阵列同质化器用于增强的激光束成型.

Jigen Ding, Shaopeng Zhu, Yike Xiao

    Optics express
    |November 22, 2024
    PubMed
    概括

    一种新型的随机金属阵列 (RMA) 增强了激光束的形状,以提高统一性. 这种光束同质化器显示出用于紧型LiDAR和激光刻画系统的潜力.

    科学领域:

    • 光学和光子学 在光学和光子学.
    • 超材料是指一种超材料.
    • 激光技术 激光技术 激光技术

    背景情况:

    • 激光束成形对于像LiDAR和激光雕刻这样的应用至关重要.
    • 实现远光束的统一性往往需要复杂的光学设置.
    • 金属镜头提供了一个紧而通用的平台,用于波面操纵.

    研究的目的:

    • 开发和演示使用随机金属阵列 (RMA) 进行增强激光束成型的光束均质化器.
    • 调查RMA在光束均性和适应性方面的性能.
    • 探索微型光学系统的潜在应用.

    主要方法:

    • 使用改进的格尔赫伯格-萨克斯顿算法设计一个28x28的随机金属阵列 (RMA),具有不同个体金属尺寸.
    • 数字模拟用于评估不同条件下的光束均性和性能.
    • 实验验证使用重新造型的线束进行验证.

    主要成果:

    • 该RMA将发生激光束划分为28x28的光束阵列,具有独特的斑点图案.
    • 在远场的重叠光束显著提高了整体光束的均性.
    • 数字模拟预测超过90%的统一性.
    • 实验结果表明,重新塑造的线梁具有95.9%的统一性.

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    结论:

    • 随机金属阵列 (RMA) 有效地使激光束均化,实现高均性.
    • 该RMA可适应各种相应的灯光模式和错位.
    • 这项技术对LiDAR和激光雕刻系统的尺寸缩小具有前景.