Open AccessCorrection of resonant optical scanner dynamic aberrations using nodal aberration theory
Author(s) -
Xiaojing Huang,
Alfredo Dubra
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.414405
Subject(s) - optics , wavefront , adaptive optics , physics , deformable mirror , optical aberration , astigmatism , scanner , vergence (optics) , point spread function , spherical aberration , cardinal point , lens (geology)
The rapid oscillation of galvanometric resonant optical scanners introduces linear astigmatism that degrades transverse resolution, and in confocal systems, also reduces signal [V. Akondi et al., Optica 7, 1506, 2020]. Here, we demonstrate correction of this aberration by tilting reflective or refractive optical elements for a single vergence or a vergence range, with and without the use of an adaptive wavefront corrector such as a deformable mirror. The approach, based on nodal aberration theory, can generate any desired third order aberration that results from tilting or decentering optical surfaces.