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Generic full-vector angular spectrum method for calculating diffraction of arbitrary electromagnetic fields
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DOI：10.1088/2515-7647/ae0384.png)
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Abstract
En 中文
Numerous angular spectrum methods have been presented to model the vectorial nature of diffractive electromagnetic field, facilitating optical field engineering in polarization-related and high numerical aperture systems. However, balancing accuracy and efficiency in state-of-the-art methods is challenging. Here, we propose a full-vector angular spectrum method for accurate, efficient, robust diffraction computation, allowing truly arbitrary incidence by precisely modeling vector plane-wave. Notably, our method inherently handles reflection and transmission at dielectric interfaces, which can be viewed as k-space filters. For rotationally symmetric system, it achieves unprecedented computation times of a few seconds, speeding up input-output mapping in optimization algorithms.
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IF:
8.4
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125
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