Non-polarizing guided-mode resonance grating filter for telecommunications

作者：Luo, Shida; Chen, Lin^*; Bao, Yinqi; Yang, Ning; Zhu, Yiming

来源：Optik, 2013, 124(21): 5158-5160.

DOI：10.1016/j.ijleo.2013.03.095

• Guide-mode resonance (GMR)
• Polarization-independent
• Telecom band
• Filter

A five-layer grating structure is designed to generate polarization-independent filter in the telecom band. It is demonstrated theoretically that in the five-layer grating structure, by adjusting the thickness of the interlayer sandwiched between two dielectric layers with high permittivity, the resonance wavelengths of transverse magnetic (TM)- and transverse electric (TE)-polarized light can locate at the same wavelength with the same guide-mode resonance structure parameters and the filter efficiency can achieve above 95%. The influence of incident angle and thickness of the interlayer on the shift of reflective peak are discussed. The peak locations for both TE and TM are proved to have a linear relation with the thickness of interlayer.

• 出版日期2013
• 单位上海理工大学