Design of superresolving continuous phase filters

作者：de Juana DM^*; Oti JE; C****es VF; Cagigal MP

来源：Optics Letters, 2003, 28(8): 607-609.

DOI：10.1364/OL.28.000607

We present a procedure for designing rotationally symmetric pupil-plane masks to control the three-dimensional light-intensity distribution near focus. Our method is based on the use of a series of figures of merit that are properly defined to describe the effect of general complex pupil functions. As a practical implementation, we have applied our method to obtain superresolving continuous smoothly varying phase-only filters. The advantages of these kinds of filters are that they do not produce energy absorption and they are easy to build with a phase-controlling device such as a deformable mirror. Results of comparisons between the performance of our method and that of other phase-filter designs are provided.

• 出版日期2003-4-15