Double-layer resonant Brewster filters consisting of a homogeneous layer and a grating with equal refractive index

作者：Wang Zhanshan^*; Sang Tian; Zhu Jingtao; Wang Li; Wu Yonggang; Chen Lingyan

来源：Applied Physics Letters, 2006, 89(24): 241119.

DOI：10.1063/1.2405862

In this letter, the double-layer resonant Brewster filters and their properties were presented, which consist of a homogenous layer with a refractive index equal to that of the grating. By tuning the thickness of the homogeneous layer, a multichannel resonant Brewster filter with thin grating thickness can be obtained. For this type of filters, the variety of the grating thickness almost did not change the resonance location, but had a distinct effect on the filter linewidth. By changing grating period or tuning incident angle, different linewidths can be obtained at the same resonance wavelength without losing the low-reflection sideband feature.

• 出版日期2006-12-11
• 单位同济大学