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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 6955–6966

Demonstration of focus-tunable diffractive Moiré-lenses

Stefan Bernet, Walter Harm, and Monika Ritsch-Marte  »View Author Affiliations


Optics Express, Vol. 21, Issue 6, pp. 6955-6966 (2013)
http://dx.doi.org/10.1364/OE.21.006955


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Abstract

In an earlier publication [Appl. Opt. 47, 3722 (2008)] we suggested an adaptive optical lens, which consists of two cascaded diffractive optical elements (DOEs). Due to the Moiré-effect the combined optical element acts as a Fresnel zone lens with a refractive power that can be continuously adjusted by a mutual rotation of the two stacked DOEs. Here we present an experimental realization of this concept. Four designs of these Moiré-DOEs (MDOEs) were fabricated in thin (0.7 mm) glass slides by lithography and subsequent etching. Each element was realized as a 16 phase level DOE designed for 633 nm illumination. Our experimental investigation shows that the Moiré-lenses have a broad adjustable refractive power range with a high efficiency, which allows one to use them for flexible beam steering and for imaging applications.

© 2013 OSA

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(090.1970) Holography : Diffractive optics
(120.3620) Instrumentation, measurement, and metrology : Lens system design

ToC Category:
Diffraction and Gratings

History
Original Manuscript: January 8, 2013
Revised Manuscript: March 1, 2013
Manuscript Accepted: March 1, 2013
Published: March 13, 2013

Citation
Stefan Bernet, Walter Harm, and Monika Ritsch-Marte, "Demonstration of focus-tunable diffractive Moiré-lenses," Opt. Express 21, 6955-6966 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-6-6955


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