利用不均的极化赫尔米特-高斯向量束来管理3D旋转角动量密度分布
Svetlana N Khonina1,2, Aleksey P Porfirev1
1Image Processing Systems Institute of RAS - Branch of the Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Samara 443001, Russia.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
我们引入了新的赫尔米特-高斯 (HG) 矢量束,具有稳定的强度和极化. 这些光束在传播过程中保留了结构性质,使得能够控制诸如旋转角动量 (SAM) 等场特征.
科学领域:
- 光学和光子学 在光学和光子学.
- 电磁主义 电磁主义
- 量子光学是一种量子光学.
背景情况:
- 均极化梁提供结构稳定性,但缺乏对复杂的极化状态的控制.
- 赫尔米特-高斯 (HG) 束在激光物理中是基本的,但需要特定的配置来实现矢量属性.
- 控制光的强度,偏振和角动量对于先进的光学应用至关重要.
研究的目的:
- 提出和分析新的不均质的极化赫尔米特-高斯 (HG) 矢量束.
- 为了证明在传播过程中这些梁的完整结构保护.
- 建立控制三维场特征的方法,包括旋转角动量 (SAM).
主要方法:
- 不同质极化 HG 矢量模式的理论表述.
- 对光束传播和结构保护的分析.
- 使用三个斯托克斯参数的横向分布进行偏振分析.
- 使用数值模拟和光学测量进行实验验证.
主要成果:
- 拟议的HG矢量束在传播过程中完全保持强度和偏振的结构性保护.
- 根据HG模式组合,确定了控制3D场特征 (强度,偏振,SAM) 的条件.
- 第三个Stokes参数准确地反映了SAM的纵向组成部分,经过实验验证.
结论:
- 不同质的极化HG矢量束提供了强大的结构稳定性,对于保持光特性至关重要.
- 这项工作为精确控制光的空间,极化和角动量特征提供了一条途径.
- 这些发现得到了理论,数值和实验证据的支持,为先进的光学技术铺平了道路.
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