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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 1 — Jan. 1, 2006
  • pp: 179–186

Apodized multilevel diffractive lenses that produce desired diffraction-limited focal spots

Qing Cao and Jürgen Jahns  »View Author Affiliations


JOSA A, Vol. 23, Issue 1, pp. 179-186 (2006)
http://dx.doi.org/10.1364/JOSAA.23.000179


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Abstract

An apodized, multilevel diffractive lens that can produce a desired diffraction-limited focal spot is proposed for many applications, such as focusing, imaging, optical storage, and optical trapping. The three key points for the design are the innovative idea of complex conjugate subzones, the use of Babinet’s principle, and the equivalent-pupil (or aperture) function theory of diffractive focusing elements composed of concentric transparent rings. As a concrete example, we numerically design a mixed multilevel diffractive lens (the highest phase level is 8) to produce a diffraction-limited Gaussian focal spot. Some related problems, such as the validity range and the combination with high-numerical-aperture refractive lenses, are also discussed.

© 2006 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(110.0110) Imaging systems : Imaging systems
(110.1220) Imaging systems : Apertures
(220.1230) Optical design and fabrication : Apodization
(220.2560) Optical design and fabrication : Propagating methods
(220.3630) Optical design and fabrication : Lenses

ToC Category:
DIFFRACTIVE OPTICS AND MICRO-OPTICS

Virtual Issues
Vol. 1, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Qing Cao and Jürgen Jahns, "Apodized multilevel diffractive lenses that produce desired diffraction-limited focal spots," J. Opt. Soc. Am. A 23, 179-186 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-1-179

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