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采用干扰度闭合幅度的二维光束形状的表征

Nithyanandan Thyagarajan, Bojan Nikolic, Christopher L Carilli

Journal of the Optical Society of America. A, Optics, image science, and vision

|September 22, 2025

概括

我们开发了一种新的光学干涉测量方法,使用闭合幅度来确定光束配置. 这种技术通过使用单个干涉图来简化测量,避免复杂的光圈照明估计.

科学领域:

光学物理学的光学物理.
干涉测量是干涉测量的方法.
梁的特性梁的特性

背景情况:

精确测量光束形状在各种光学应用中至关重要.
现有的方法通常需要多次测量或复杂的光圈照明估计.
无线电干扰测量技术为高分辨率成像提供了潜在的解决方案.

研究的目的:

引入一种新的技术,以高角度分辨率确定光束的二维配置.
通过使用单个干涉图,避免光圈照明估计,克服以前方法的局限性.
为了展示闭合幅度在光学干扰测量中用于光束造型的首次现实应用.

主要方法:

利用受无线电干扰计启发的闭合幅度来确定光束形状.
从一个非冗余掩盖的光圈使用单个干涉图.
使用ALBA同步光源的数据验证了该方法.

主要成果:

从单个干扰图成功确定了具有高角度分辨率的2D光束配置.
消除了估计光圈照明的需要,简化了测量过程.
证明了闭合幅度对时间变化的光圈照明的不变性.

结论:

闭合振幅技术为光束造型提供了一种更有效,更强大的方法.
这种方法有可能降低光学测量的数据速率和计算成本.
在将无线电干扰计原理应用于光束特征化方面取得了重大进展.

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