基于金属/介质/金属(MIM)波导，提出了一种两侧含有双环、四环谐振腔的等离激元波导滤波结构，采用电磁仿真计算了其电磁传输特性，通过场分布分析了透射谱中通带和谷值产生的物理机理。仿真结果表明该结构可实现等离激元诱导透明(PIT)，通过改变谐振腔的有效半径，可调节PIT窗口的位置、带宽和慢光效应。计算结果显示在双环和四环谐振结构的PIT窗口，可以实现0.148和0.358ps的信号延迟。这一特性在可调滤波器件、光存储器件和集成光子器件设计上具有潜在应用价值。

To investigate the effect of photodynamic therapy (PDT) with hematoporphrin monomethyl ether (HMME) on bovine immunodeficiency virus (BIV) can provide the basis theory for photoinactivation of human immunodeficiency virus (HIV). To assess the protection of HMME-PDT on the cell line Cf2Th infected with BIVR29 by 3-(4,5)-dimethylthiahiazol-2-y1-3,5-di-phenytetrazolium bromide (MTT) with power density of 5 and 25 mW/cm2 and energy density from 0.6 to 3 J/cm2. To observe the inhibition of membrane fusion using a new reporter cell line BIVE by fluorescence microscope. HMME-PDT has significant protectant effects on Cf2Th-BIVR29 with both power densities, especially in the group of high power density. Fluorescent microscope shows that there is no significant difference between the group of PDT and control, which means PDT could not inhibit the BIV-mediated membrane fusion.