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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 9315–9323

Design of reflective color filters with high angular tolerance by particle swarm optimization method

Chenying Yang, Liang Hong, Weidong Shen, Yueguang Zhang, Xu Liu, and Hongyu Zhen  »View Author Affiliations

Optics Express, Vol. 21, Issue 8, pp. 9315-9323 (2013)

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We propose three color filters (red, green, blue) based on a two-dimensional (2D) grating, which maintain the same perceived specular colors for a broad range of incident angles with the average polarization. Particle swarm optimization (PSO) method is employed to design these filters for the first time to our knowledge. Two merit functions involving the reflectance curves and color difference in CIEDE2000 formula are respectively constructed to adjust the structural parameters during the optimization procedure. Three primary color filters located at 637nm, 530nm and 446nm with high saturation are obtained with the peak reflectance of 89%, 83%, 66%. The reflectance curves at different incident angles are coincident and the color difference is less than 8 for the incident angle up to 45°. The electric field distribution of the structure is finally studied to analyze the optical property.

© 2013 OSA

OCIS Codes
(050.6624) Diffraction and gratings : Subwavelength structures
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Diffraction and Gratings

Original Manuscript: February 20, 2013
Revised Manuscript: March 25, 2013
Manuscript Accepted: April 1, 2013
Published: April 8, 2013

Chenying Yang, Liang Hong, Weidong Shen, Yueguang Zhang, Xu Liu, and Hongyu Zhen, "Design of reflective color filters with high angular tolerance by particle swarm optimization method," Opt. Express 21, 9315-9323 (2013)

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