Jf. Lin et Aa. Sawchuk, DESIGN OF DIFFRACTIVE OPTICAL-ELEMENTS WITH OPTIMIZATION OF THE SIGNAL-TO-NOISE RATIO AND WITHOUT A DUMMY AREA, Applied optics, 36(14), 1997, pp. 3155-3164
We describe a new approach to suppress undesired diffraction orders in
the signal area of a Fourier plane diffractive optical element (DOE).
We implement this new approach for the DOE design by a two-stage iter
ative Fourier transform algorithm that incorporates an adaptive optimi
zation of the signal-to-noise ratio and does not require the introduct
ion of a dummy output area outside the field of view. A comparison amo
ng this approach and three other approaches are presented on the basis
of numerical results from several sample diffraction patterns. (C) 19
97 Optical Society of America.