Subwavelength metallic gratings as an integrated device: Polarized color filter

Nghia Nguyen-Huu, Yu-Lung Lo, Yu Bin Chen, Tsai Yu Yang

研究成果: Conference contribution

6 引文 斯高帕斯(Scopus)


Subwavelength metallic gratings were proposed as integrated polarized-RGB (red, green, and blue) color filters here and their performance was further numerically optimized with the rigorous coupled-wave analysis (RCWA) method and the genetic algorithm (GA). Grating types include the single-layer type and the double-layer one while parameters to be optimized are the period, filling factor, and thickness of each layer. The ideal performance is defined both by the large extinction ratio over the visible range and by the high transmittance aiming at wavelengths of 700 nm (R), 546.1 nm (G), and 435.8 nm (B). Results showed that a double-layer grating achieves about 50% transmission efficiency and a large extinction ratio (60dB), which are better than those in previous studies. If the proposed design can integrate with popular liquid crystal display panels, a promising way can be paved to reduce the volume and cost of display electronics.

主出版物標題Optical Components and Materials VIII
出版狀態Published - 2011 五月 2
事件Optical Components and Materials VIII - San Francisco, CA, United States
持續時間: 2011 一月 252011 一月 26


名字Proceedings of SPIE - The International Society for Optical Engineering


OtherOptical Components and Materials VIII
國家United States
城市San Francisco, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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