Extended depth of field of an imaging system with an annular aperture
Loading...
Access rights
openAccess
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal
View/Open full text file from the Research portal
Other link related to publication
View publication in the Research portal
View/Open full text file from the Research portal
Other link related to publication
Author
Date
2023-03-27
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
14
11102-11115
11102-11115
Series
Optics Express, Volume 31, issue 7
Abstract
A common drawback of high-resolution optical imaging systems is a short depth of field. In this work, we address this problem by considering a 4f -type imaging system with a ring-shaped aperture in the front focal plane of the second lens. The aperture makes the image consist of nearly non-diverging Bessel-like beams and considerably extends the depth of field. We consider both spatially coherent and incoherent systems and show that only incoherent light is able to form sharp and non-distorted images with extraordinarily long depth of field.Description
Publisher Copyright: © 2023 OSA - The Optical Society. All rights reserved.
Keywords
Other note
Citation
Hilden, P & Shevchenko, A 2023, ' Extended depth of field of an imaging system with an annular aperture ', Optics Express, vol. 31, no. 7, pp. 11102-11115 . https://doi.org/10.1364/OE.484290
