Polarizing color filter based on subwavlength metallic grating with grooves carved in

OPTICS COMMUNICATIONS

卷:315

Article

Chu, Jinkui^1,2  Zhang, Yingjie^1,2  Wang, Zhiwen^1,2  Guan, Le^1,2 

[1] Dalian Univ Technol, Key Lab Precis & Nontradit Machining Technol, Minist Educ, Dalian 116024, Peoples R China

[2] Key Lab Micro Nano Technol & Syst Liaoning Prov, Dalian, Peoples R China

关键词: Subwavlength metallic grating;    Color filter;    Transmission enhancement;    Groove;    Fabry-Perot like resonant;   

DOI  :  10.1016/j.optcom.2013.10.058

来源: Elsevier

【 摘 要 】

A polarizing color filter based on subwavelength metallic grating with grooves carved in the wires is investigated using the finite-difference-time-domain (FOTO). method. Three different devices are designed based on the transmission characteristics under different geometrical parameters: the maximum transmittances are 69.7%, 74.8% and 65.3%, the extinction ratios at the transmission peak wavelength are 148, 70 and 41, and the full widths at half-maximum (FWHM) are 101 nm, 90 nm and 107 nm, respectively. The structure not only obtains a high transmittance, broad bandwidth and desirable extinction ratio, but also suppresses redundant spectral peaks and transmission sidebands. Therefore, it provides a new reference for the design of color filters. (C) 2013 Elsevier B.V. All rights reserved.

【 授权许可】

Free