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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 6 — Jun. 27, 2013

Reflective colored image based on metal–dielectric–metal-coated gratings

Hans Lochbihler  »View Author Affiliations


Optics Letters, Vol. 38, Issue 9, pp. 1398-1400 (2013)
http://dx.doi.org/10.1364/OL.38.001398


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Abstract

Subwavelength gratings coated with metal–dielectric–metal layers and embedded in a dielectric exhibit distinctive color properties in reflectance. The reflected color of incident unpolarized white light can be tuned by the modulation depth of the grating. It is shown that reflective colored images may be reproduced by this type of gratings having a laterally adapted modulation depth. Its lightness, as well as the angle tolerance of the image coloring, is even suitable for human observers in ambient light. The gratings with variable depth are manufactured by electron-beam lithography and by a subsequent direct laser writing process. These types of reflective images may be replicated by a simple nano-imprint process on plastic foil. This method is predestined for industrial mass production.

© 2013 Optical Society of America

OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: February 5, 2013
Revised Manuscript: March 13, 2013
Manuscript Accepted: March 25, 2013
Published: April 22, 2013

Virtual Issues
Vol. 8, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Hans Lochbihler, "Reflective colored image based on metal–dielectric–metal-coated gratings," Opt. Lett. 38, 1398-1400 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-38-9-1398

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