Einstein beams and the diffractive aspect of gravitationally-lensed light
Einstein beams and the diffractive aspect of gravitationally-lensed light
复制标题
爱因斯坦光束和引力透镜光的衍射方面
DOI：
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复制
发表时间：
2023
影响因子：
3.3
通讯作者：
E. Galvez
中科院分区：
文献类型：
--
作者：
V. Rodríguez;Thao P. Nguyen;Kiyan S. Hocek;J. M. Freedman;E. Galvez
对宇宙物质所形成的光透镜的研究已经提供了许多有关天体物理学问题的信息。观察解释使用几何光学以下的光线为基础的描述。在偏转之后，透镜化的光发生干涉，但是由于光源的有限尺寸或缺乏近乎完美的对准所引起的相干性挑战，观察引力透镜的这种衍射方面是不可能的。在这篇文章中，我们报告的观察引力透镜的这些波的影响，通过在实验室中重建的透镜条件，通过电光偏转相干激光。透镜化的光产生包含折射率、焦散和强度的色调制的光束，这些调制取决于透镜化物体的对称性和结构。我们还能够观察到以前和新的几何光学透镜的情况下，可以比较天体物理观测。这个平台可以是一个有用的工具，用于测试数值/分析模拟，并进行模拟模拟的透镜的情况下，他们很难获得，否则。我们发现，实验室透镜光束构成了一类新的光束，具有长距离，低膨胀和自我修复的特性，为非天体物理应用开辟了新的可能性。
The study of light lensed by cosmic matter has yielded much information about astrophysical questions. Observations are explained using geometrical optics following a ray-based description of light. After deflection the lensed light interferes, but observing this diffractive aspect of gravitational lensing has not been possible due to coherency challenges caused by the finite size of the sources or lack of near-perfect alignment. In this article, we report on the observation of these wave effects of gravitational lensing by recreating the lensing conditions in the laboratory via electro-optic deflection of coherent laser light. The lensed light produces a beam containing regularities, caustics, and chromatic modulations of intensity that depend on the symmetry and structure of the lensing object. We were also able to observe previous and new geometric-optical lensing situations that can be compared to astrophysical observations. This platform could be a useful tool for testing numerical/analytical simulations, and for performing analog simulations of lensing situations when they are difficult to obtain otherwise. We found that laboratory lensed beams constitute a new class of beams, with long-range, low expansion, and self-healing properties, opening new possibilities for non-astrophysical applications.
DOI：
10.1117/12.2582367
发表时间：
2021-03
期刊：
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影响因子：
--
作者：
E. Galvez;J. M. Freedman
通讯作者：
E. Galvez;J. M. Freedman
影响因子：
6.4
作者：
A. Katz;J. Kopp;S. Sibiryakov;W. Xue
通讯作者：
A. Katz;J. Kopp;S. Sibiryakov;W. Xue
携带轨道角动量的爱因斯坦光束
DOI：
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发表时间：
2023
期刊：
Proceedings of SPIE
影响因子：
--
作者：
Rodriguez-Fajardo, V;Nguyen, T;Hocek, K;Freedman, J;Galvez, E
通讯作者：
Galvez, E