Efficient full-path optical calculation of scalar and vector diffraction using the Bluestein method.

ABSTRACT: Efficient calculation of the light diffraction in free space is of great significance for tracing electromagnetic field propagation and predicting the performance of optical systems such as microscopy, photolithography, and manipulation. However, existing calculation methods suffer from low computational efficiency and poor flexibility. Here, we present a fast and flexible calculation method for computing scalar and vector diffraction in the corresponding optical regimes using the Bluestein method. The computation time can be substantially reduced to the sub-second level, which is 10⁵ faster than that achieved by the direct integration approach (~hours level) and 10² faster than that achieved by the fast Fourier transform method (~minutes level). The high efficiency f

SUBMITTER: Hu Y 

PROVIDER: S-EPMC7359032 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature