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.
© 2012 Optical Society of America
Diffraction and Gratings
Original Manuscript: November 23, 2011
Manuscript Accepted: December 16, 2011
Published: March 2, 2012
Gang Bao, Peijun Li, and Haijun Wu, "A computational inverse diffraction grating problem," J. Opt. Soc. Am. A 29, 394-399 (2012)