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Applied Optics

Applied Optics


  • Vol. 38, Iss. 32 — Nov. 10, 1999
  • pp: 6692–6699

Simultaneous multiplane imaging with a distorted diffraction grating

Paul M. Blanchard and Alan H. Greenaway  »View Author Affiliations

Applied Optics, Vol. 38, Issue 32, pp. 6692-6699 (1999)

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We describe a simple technique for simultaneously imaging multiple layers within an object field onto a single camera. The approach uses a binary diffraction grating in which the lines are distorted such that a different level of defocus is associated with each diffraction order. The design of the gratings is discussed, and their ability to image multiple object planes is validated experimentally. Extension of the technique for spherical-aberration correction is described, and it is shown how the gratings can be used as part of a wave-front–sensing system.

© 1999 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(050.1380) Diffraction and gratings : Binary optics
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1970) Diffraction and gratings : Diffractive optics
(110.4190) Imaging systems : Multiple imaging

Original Manuscript: May 25, 1999
Revised Manuscript: July 29, 1999
Published: November 10, 1999

Paul M. Blanchard and Alan H. Greenaway, "Simultaneous multiplane imaging with a distorted diffraction grating," Appl. Opt. 38, 6692-6699 (1999)

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