A computational inverse diffraction grating problem

作者:Bao Gang; Li Peijun*; Wu Haijun
来源:Journal of the Optical Society of America A-Optics Image Science and Vision, 2012, 29(4): 394-399.
DOI:10.1364/JOSAA.29.000394

摘要

Consider the diffraction of a time-harmonic plane wave incident on a perfectly reflecting periodic surface. A continuation method on the wavenumber is developed for the inverse diffraction grating problem, which reconstructs the grating profile from measured reflected waves a constant distance away from the structure. Numerical examples are presented to show the validity and efficiency of the proposed method.