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Proceedings Paper

Extended depth of focus and aberration correction using time multiplexing
Author(s): Asaf Ilovitsh; Gilad Rand; Shilo Levavi; Zeev Zalevsky
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Paper Abstract

We propose using the time multiplexing super resolution method in order to extend the depth of focus of an imaging system. In standard time multiplexing the super resolution is achieved by generating duplication of the optical transfer function in the spectrum domain by using moving gratings. By changing the grating's frequency, and by that changing the duplication positions, it is possible to obtain an extended depth of focus. Using the same concept, it is also possible to correct geometrical aberrations of the imaging lens. The proposed method is presented analytically, demonstrated via numerical simulations, and validated by a laboratory experiments.

Paper Details

Date Published: 22 February 2017
PDF: 11 pages
Proc. SPIE 10077, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV, 100770Q (22 February 2017); doi: 10.1117/12.2250273
Show Author Affiliations
Asaf Ilovitsh, Bar-Ilan Univ. (Israel)
Gilad Rand, Bar-Ilan Univ. (Israel)
Shilo Levavi, Bar-Ilan Univ. (Israel)
Zeev Zalevsky, Bar-Ilan Univ. (Israel)

Published in SPIE Proceedings Vol. 10077:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV
Alexander N. Cartwright; Dan V. Nicolau; Dror Fixler, Editor(s)

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