Title

Axial field shaping under high-numerical-aperture focusing

Authors

Authors

T. G. Jabbour;S. M. Kuebler

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Opt. Lett.

Keywords

2-PHOTON SCANNING MICROSCOPY; GENERALIZED PROJECTIONS; VECTOR; DIFFRACTION; SUPERRESOLUTION; FILTERS; HOLOGRAMS; ELEMENTS; DESIGN; BEAMS; Optics

Abstract

Kant reported [J. Mod. Optics 47, 905 (2000)] a formulation for solving the inverse problem of vector diffraction, which accurately models high-NA focusing. Here, Kant's formulation is adapted to the method of generalized projections to obtain an algorithm for designing diffractive optical elements (DOEs) that reshape the axial point-spread function (PSF). The algorithm is applied to design a binary phase-only DOE that superresolves the axial PSF with controlled increase in axial sidelobes. An 11-zone DOE is identified that axially narrows the PSF central lobe by 29% while maintaining the sidelobe intensity at or below 52% of the peak intensity. This DOE could improve the resolution achievable in several applications without significantly complicating the optical system. (c) 2007 Optical Society of America.

Journal Title

Optics Letters

Volume

32

Issue/Number

5

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

527

Last Page

529

WOS Identifier

WOS:000248936600029

ISSN

0146-9592

Share

COinS