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Physical Optics, Diffractive Optics

Diffractive elements for imaging with extended depth of focus

[+] Author Affiliations
Grzegorz Mikuła, Andrzej Kolodziejczyk, Michał Makowski, Czesław Prokopowicz, Maciej Sypek

Warsaw University of Technology, Faculty of Physics, Koszykowa 75, 00-662 Warsaw, Poland

Opt. Eng. 44(5), 058001 (May 12, 2005). doi:10.1117/1.1905481
History: Received Jul. 6, 2004; Revised Nov. 19, 2004; Accepted Nov. 19, 2004; May 12, 2005; Online May 12, 2005
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We present the abilities of diffractive elements for imaging with extended depth of focus. The elements of interest belong to the class of diffractive structures focusing incident light into a segment of the optical axis. We describe the imaging properties of the two following elements of this kind: the annular axicon and the light sword optical element (LSOE). In particular, the point spread functions and the modulation transfer functions of axicons and LSOEs are analyzed experimentally and numerically in detail. The obtained results correspond to different defocusing parameters. The performed experiments confirm the usefulness of axicons and LSOEs for imaging with extended depth of focus. © 2005 Society of Photo-Optical Instrumentation Engineers.

© 2005 Society of Photo-Optical Instrumentation Engineers

Citation

Grzegorz Mikuła ; Andrzej Kolodziejczyk ; Michał Makowski ; Czesław Prokopowicz and Maciej Sypek
"Diffractive elements for imaging with extended depth of focus", Opt. Eng. 44(5), 058001 (May 12, 2005). ; http://dx.doi.org/10.1117/1.1905481


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