拉古埃尔-高斯模式在亚齐木图斯相调节后变得优雅
Optics letters
|March 14, 2025
概括
调节拉盖尔-高斯 (Laguerre-Gaussian) (LG) 光束与形状,可以产生优雅的拉盖尔-高斯 (eLG) 模式,而不是超几何-高斯模式. 这些eLG模式提供了一个更直观的理解轨道角动量 (OAM) 在光束调制期间的变化.
科学领域:
- 光学和光子学 在光学和光子学.
- 量子光学是一种量子光学.
- 数学物理 数学物理
背景情况:
- 拉盖尔-高斯 (Laguerre-Gaussian,LG) 模式是对轴光学的基本解决方案,其特点是轨道角动量 (orbital angular momentum,OAM).
- 仅使用相位旋配置文件对LG模式的调制是操纵OAM的常见方法.
- 之前的研究将这些调制光束确定为超几何-高斯模式.
研究的目的:
- 重新评估光场的性质,通过调制LG模式与形状的形状产生的光场.
- 为了证明这些调制光束具有优雅的拉盖尔-高斯 (eLG) 模式的角光谱.
- 为了提供一个更直观的框架来理解OAM在调制光场的变化.
主要方法:
- 分析LG模式的仅相旋调制所产生的光场的角光谱.
- 与已知模式家族的光谱属性的比较,特别是超几何-高斯式和优雅的拉盖尔-高斯式 (eLG) 模式.
- 理论推导与eLG模式相关的新OAM和辐射量子数.
主要成果:
- 调制光束呈现出与优雅的拉盖尔-高斯 (eLG) 模式相一致的角光谱.
- 这一发现与以前对高几何-高斯模式的赋值形成鲜明对比.
- 由此产生的eLG模式具有重新定义的OAM和辐射量子数,取决于初始和获得的OAM.
结论:
- 只有相位的LG束调制产生ELG模式,为LG类型模式提供更直接的映射.
- eLG模式表示简化了对OAM和辐射指数在调制过程中如何演变的理解.
- 这项工作完善了可调节OAM的光场的理论描述.
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