Abstract

Kinoforms (i.e., computer-generated phase holograms) are designed with a new algorithm, the optimal-rotation-angle method, in the paraxial domain. This is a direct Fourier method (i.e., no inverse transform is performed) in which the height of the kinoform relief in each discrete point is chosen so that the diffraction efficiency is increased. The optimal-rotation-angle algorithm has a straightforward geometrical interpretation. It yields excellent results close to, or better than, those obtained with other state-of-the-art methods. The optimal-rotation-angle algorithm can easily be modified to take different restraints into account; as an example, phase-swing-restricted kinoforms, which distribute the light into a number of equally bright spots (so called fan-outs), were designed. The phase-swing restriction lowers the efficiency, but the uniformity can still be made almost perfect.

© 1994 Optical Society of America

Design of fan-out kinoforms in the entire scalar diffraction regime with an optimal-rotation-angle method

Jörgen Bengtsson
Appl. Opt. 36(32) 8435-8444 (1997)

Kinoforms designed to produce different fan-out patterns for two wavelengths

Jörgen Bengtsson
Appl. Opt. 37(11) 2011-2020 (1998)

Direct inclusion of the proximity effect in the calculation of kinoforms

Jörgen Bengtsson
Appl. Opt. 33(22) 4993-4996 (1994)

Phase optimization of a kinoform by simulated annealing

Nobukazu Yoshikawa and Toyohiko Yatagai
Appl. Opt. 33(5) 863-868 (1994)

Comparison of iterative angular spectrum and optimal rotation angle methods in designing beam-fanners

Seyyed H. Kazemi, Mir M. Mirsalehi, and Amir R. Attari
Opt. Express 17(17) 14825-14831 (2009)