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 f lat top. Its fit to the required profile measured in the mean square error is 3.576 × 10-3.
© 1996 Optical Society of America
Xuegong Deng, Yongping Li, Dianyuan Fan, and Yue Qiu, "Pure-phase plates for super-Gaussian focal-plane irradiance profile generations of extremely high order," Opt. Lett. 21, 1963-1965 (1996)