Superresolution along extended depth of focus with binary-phase filters for the Gaussian beam
JOSA A, Vol. 25, Issue 8, pp. 2095-2101 (2008)
http://dx.doi.org/10.1364/JOSAA.25.002095
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Abstract
In the paraxial Debye regime, simple and power-efficient pupil filters are designed to break the diffraction limit along a large depth of focus (DOF) for the Gaussian beam. Dependences of the superresolution factor, DOF gain, Strehl ratio, sidelobe strength, and axial intensity nonuniformity on the Gaussian profile in the pupil plane are characterized using the numerical method. Optimal filter designs are proposed for either high-resolution or ultra-large-DOF applications followed by experimental verifications.
© 2008 Optical Society of America
OCIS Codes
(100.6640) Image processing : Superresolution
(170.1630) Medical optics and biotechnology : Coded aperture imaging
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography
ToC Category:
Medical Optics and Biotechnology
History
Original Manuscript: April 15, 2008
Revised Manuscript: June 16, 2008
Manuscript Accepted: June 19, 2008
Published: July 24, 2008
Virtual Issues
Vol. 3, Iss. 9 Virtual Journal for Biomedical Optics
Citation
Linbo Liu, Frédéric Diaz, Liang Wang, Brigitte Loiseaux, Jean-Pierre Huignard, C. J. R. Sheppard, and Nanguang Chen, "Superresolution along extended depth of focus with binary-phase filters for the Gaussian beam," J. Opt. Soc. Am. A 25, 2095-2101 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-8-2095
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