对称叠加光学涡旋中复振幅单分量的一次测量表征
One-time measurement to characterize complex amplitude single component in symmetry superposed optical vortices
AI总结：
提出一种仅需单次CCD拍摄即可表征对称叠加光学涡旋复振幅的方法，结合环形提取与旋转测量策略，实现高达99.99%的模式纯度测量。
摘要：
复振幅测量是光场表征的基本前提。在本工作中，我们提出了一种一次测量方法，仅通过CCD记录的一幅图像即可表征对称叠加光学涡旋（SSOVs）的复振幅。该方法包含我们提出的两种策略：一种是用于振幅测量的环形提取策略，另一种是用于相位测量的旋转测量策略。在概念验证实验中，我们成功表征了复振幅，并准确测量了模式纯度。该方法具有优异的灵活性、快速性和鲁棒性，可适用于多种场合和苛刻条件。通过精细的对准和优化的误差分析，我们能够生成并测量模式纯度高达99.99%的单分量。
英文摘要：
Complex amplitude measurement is an essential prerequisite for light field characterization. In this work, we propose a one-time measurement method to characterize the complex amplitude of symmetry superposed optical vortices (SSOVs) with only one picture registered by CCD. This method includes two strategies we proposed. One is the ring extraction strategy for amplitude measurement, and another is the rotational measurement strategy for phase measurement. In the proof-of-concept experiment, the complex amplitude is characterized, and the mode purity is well measured. This method has excellent flexibility, rapidity, and robustness, which can be applied to various occasions and harsh conditions. Careful alignment and optimized error analysis allow us to generate and measure a single component with mode purity as high as 99.99%.
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