光束光学领域中的高强度波涡旋：三维空间结构、单平面模型及其传播特性
High-intensity wave vortices in the beamoptics domain: 3D spatial structure, singleplane models, and their propagation properties
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中文总结 AI 辅助
本文扩展II型光学涡旋至近轴光束，证明其仅存在于多重连通三维空间，并提出了利用可编程光调制器和计算机合成全息图创建此类场结构的方法，模拟与实验吻合。
中文摘要 AI 辅助
通常，波场中的涡旋与振幅零点相关。相反，最近描述的高强度（II型）波涡旋出现在振幅极点附近，并且只能存在于不连通的空间中。我们试图将II型光学涡旋（OV）的概念扩展到近轴光束状光学场。研究表明，“真正的”II型OV场只能存在于多重连通的三维空间中，其中电磁场无法穿透的空间“孔洞”由刻意创建的丝状材料夹杂物形成。然而，“真正的”II型OV的横截面可以在普通“自由”空间的特定平面中再现，其中孔洞由零振幅区域指定。提出了实际创建所讨论场结构的方法，包括使用可编程光调制器和计算机合成全息图的方法。计算机模拟结果与实验数据显示出合理的一致性。
英文摘要
Typically, vortices in wave fields are associated with amplitude zeros. In contrast, recently described high-intensity (Type II) wave vortices appear near amplitude poles and can exist only in disconnected space. We attempt to extend the concept of a Type II optical vortex (OV) to paraxial beam-like optical fields. It is shown that "true" Type II OV fields can exist only in a multiply connected three-dimensional space, where spatial "holes" impenetrable to the electromagnetic field are formed by purposefully created filamentary inclusions of material. However, the cross-section of a "true" Type II OV can be reproduced in a specific plane of ordinary "free" space, where the hole is designated by a region with zero amplitude. Methods for the practical creation of the discussed field structures are proposed, including methods using programmable light modulators and computer-synthesized holograms. The results of computer simulations demonstrate reasonable agreement with experimental data.
发表机构
- Yuriy Fedkovych Chernivtsi National University（尤里·费多基维奇切爾諾夫策國立大學）
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