论文标题
结构化光的无损重塑
Lossless reshaping of structured light
论文作者
论文摘要
结构化的光涉及其在空间自由度（振幅，相位和极化）中对光的控制，并且在许多应用中已证明具有启发性。结构化光的创建通常涉及一个步骤中的高斯模式转换为所需的结构，而检测通常是反向过程，无论是从根本上有损失还是不完美。在这里，我们在简单的两步过程中以无损的方式显示了如何理想地重塑结构的光。我们概述了核心理论论点，并在此过程中强调了该技术适用，何时不适用，以及如何最好地实施它。这项工作将是结构化轻型工具包的有用补充，尤其与希望使用光空间模式作为经典和量子通信的基础的人尤其重要。
Structured light concerns the control of light in its spatial degrees of freedom (amplitude, phase and polarization), and has proven instrumental in many applications. The creation of structured light usually involves the conversion of a Gaussian mode to a desired structure in a single step, while the detection is often the reverse process, both fundamentally lossy or imperfect. Here we show how to ideally reshape structured light in a lossless manner in a simple two-step process. We outline the core theoretical arguments, and demonstrate reshaping of arbitrary structured light patterns, in the process highlighting when the technique is applicable and when not, and how best to implement it. This work will be a useful addition to the structured light toolkit, and particularly relevant to those wishing to use the spatial modes of light as a basis in classical and quantum communication.
