Extended depth of field of an imaging system with an annular aperture
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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14
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Optics Express, Volume 31, issue 7, pp. 11102-11115
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.
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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