A set of recursive formulas for diffractive optical plates design is described. The pure-phase plates simulated by this method homogeneously concentrate more than 96% of the incident laser energy in the desired focal-plane region. The intensity focal-plane profile fits a 12th-order super-Gaussian function and has a nearly perfect flat top. Its fit to the required profile measured in the mean square error is 3.576 × 10−3.
© 1996 Optical Society of America
Original Manuscript: August 5, 1996
Published: December 15, 1996
Xuegong Deng, Dianyuan Fan, Yue Qiu, and Yongping Li, "Pure-phase plates for super-Gaussian focal-plane irradiance profile generations of extremely high order," Opt. Lett. 21, 1963-1965 (1996)