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Optics Letters

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  • Vol. 25, Iss. 7 — Apr. 1, 2000
  • pp: 439–441

Anomaly in a high-numerical-aperture diffractive focusing lens

Ram Oron, Jacob L. Guedalia, Nir Davidson, Asher A. Friesem, and Erez Hasman  »View Author Affiliations


Optics Letters, Vol. 25, Issue 7, pp. 439-441 (2000)
http://dx.doi.org/10.1364/OL.25.000439


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Abstract

We show an anomalous behavior in a diffractive lens in which the spot size at the focus reaches a minimum at a numerical aperture of ~0.5 and then increases significantly at higher values. Theoretical and experimental results are presented, along with a comparison with refractive aplanatic lenses, in which the anomaly does not appear to exist.

© 2000 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(050.1960) Diffraction and gratings : Diffraction theory
(050.1970) Diffraction and gratings : Diffractive optics

Citation
Ram Oron, Jacob L. Guedalia, Nir Davidson, Asher A. Friesem, and Erez Hasman, "Anomaly in a high-numerical-aperture diffractive focusing lens," Opt. Lett. 25, 439-441 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-7-439


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