6533b861fe1ef96bd12c451a

RESEARCH PRODUCT

Tailoring the axial shape of the point spread function using the Toraldo concept

María Teresa Caballero CaballeroErnst H. K. StelzerJim SwogerManuel Martínez-corral

subject

Point spread functionPhysicsbusiness.industryConcentricSuperresolutionAtomic and Molecular Physics and OpticsPtychographysymbols.namesakeFourier transformOpticsTransmittancesymbolsConstant (mathematics)businessRefractive index

description

A novel procedure for shaping the axial component of the point spread function of nonparaxial focusing systems by use of phase-only pupil filters is presented. The procedure is based on the Toraldo technique for tailoring focused fields. The resulting pupil filters consist of a number of concentric annular zones with constant real transmittance. The number of zones and their widths can be adapted according to the shape requirements. Our method is applied to design filters that produce axial superresolution in confocal scanning systems.

yearjournalcountryeditionlanguage
2002-01-14Optics Express
https://doi.org/10.1364/oe.10.000098