Design of binary subwavelength multiphase level computer generated holograms
Optics Letters, Vol. 35, Issue 5, pp. 676-678 (2010)
http://dx.doi.org/10.1364/OL.35.000676
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Abstract
The ability of subwavelength structures to create an artificial effective index opens up new perspectives in designing highly efficient diffractive optical elements. We demonstrate a design approach for binary multi-phase level computer generated holograms based on the effective medium approach. The phase pattern is formed by various subwavelength structures that cause a certain phase delay to an incident light wave. This binary structure approach leads to a significant cost reduction by simplifying the fabrication process. For demonstration, a three-phase level element, operating in the visible range, is fabricated and experimentally evaluated.
© 2010 Optical Society of America
OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(090.1970) Holography : Diffractive optics
(090.2890) Holography : Holographic optical elements
(050.6624) Diffraction and gratings : Subwavelength structures
ToC Category:
Holography
History
Original Manuscript: October 29, 2009
Revised Manuscript: January 11, 2010
Manuscript Accepted: January 26, 2010
Published: February 24, 2010
Citation
Wiebke Freese, Thomas Kämpfe, Ernst-Bernhard Kley, and Andreas Tünnermann, "Design of binary subwavelength multiphase level computer generated holograms," Opt. Lett. 35, 676-678 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-5-676
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