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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 27 — Sep. 20, 2009
  • pp: 5035–5039

Color filter based on a two-dimensional submicrometer metal grating

Yan Ye, Yun zhou, and Linsen Chen  »View Author Affiliations


Applied Optics, Vol. 48, Issue 27, pp. 5035-5039 (2009)
http://dx.doi.org/10.1364/AO.48.005035


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Abstract

A color filter incorporating a two-dimensional (2D) submicrometer metal grating is proposed. The device is designed by utilizing rigorous coupled-wave analysis (RCWA) and consists of four parts: a polymethyl methacrylate (PMMA) substrate, a dielectric film of high refractive index, a submicrometer grating, and a dielectric overlay of low refractive index. Its performance is enhanced effectively by applying a dielectric film of high refractive index. With a dielectric film height of 30 nm, a grating depth of 70 nm, and an overlay height of zero, three different devices are designed with the following structural parameters: a period of 420 nm for the red, a period of 350 nm for the green, and a period of 260 nm for the blue. For the red filter, the center wavelength is 645 nm and the peak transmission is 72%; for the green one, the center wavelength is 546 nm and the peak transmission is 75%; and for the blue one, the center wavelength is 455 nm and the peak transmission is 71%. The calculated result shows that its peak transmission efficiency increased more than 14% compared to the previous color filters incorporating a grating.

© 2009 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(090.0090) Holography : Holography
(230.0230) Optical devices : Optical devices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 21, 2009
Revised Manuscript: August 17, 2009
Manuscript Accepted: August 21, 2009
Published: September 10, 2009

Citation
Yan Ye, Yun zhou, and Linsen Chen, "Color filter based on a two-dimensional submicrometer metal grating," Appl. Opt. 48, 5035-5039 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-27-5035

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