论文信息 - Focusing properties of annular binary phase filters

Focusing properties of annular binary phase filters

In this work, the focal behavior of optical systems with annular binary phase-only filters is theoretically investigated. Analytical expressions for the figures of merit that describe the three-dimensional light intensity distribution near the focus for this kind of filters are derived. These figures of merit are the basis for a novel procedure for designing annular binary filters with desired focal volume characteristics. As an example, we have applied this procedure to achieve superresolution in the transverse or in the axial direction.

[1] F. Gan,et al. High focal depth with a pure-phase apodizer. , 2001, Applied optics.

[2] Z. S. Hegedus,et al. Superresolving filters in confocally scanned imaging systems , 1986 .

[3] G. Toraldo di Francia,et al. Super-gain antennas and optical resolving power , 1952 .

[4] Fuxi Gan,et al. Phase-shifting apodizer for next-generation digital versatile disk , 2001 .

[5] G. Michael Morris,et al. DIFFRACTIVE SUPERRESOLUTION ELEMENTS , 1997 .

[6] Tasso R. M. Sales,et al. Smallest Focal Spot , 1998 .

[7] Ingemar J. Cox,et al. REAPPRAISAL OF ARRAYS OF CONCENTRIC ANNULI AS SUPERRESOLVING FILTERS. , 1982 .

[8] T R Sales,et al. Fundamental limits of optical superresolution. , 1997, Optics letters.

[9] Vidal F Canales,et al. Design of superresolving continuous phase filters. , 2003, Optics letters.