【摘要】 通过时域有限差分法模拟金属光栅狭缝中的光场分布随时间的演化及狭缝阵列参数对透射光谱的影响 ,进一步证明 ,一维金属光栅的透射光增强效应起源于狭缝中光场的类Fabry—Perot(F—P)共振。光栅参数变化产生的透射光谱的漂移是由于其对这种类F—P腔长度的调制。更多还原

【Abstract】 We have simulated the slits light distribution of metallic gratings follows time evolution and the effect of the slits array parameters on transmission spectra.We also further proved the high transmission light through one-dimensional metallic gratings originating in Fabry-Perot-like resonance of the slits light.The transmission spectra drift from the varying of the gratings parameters is due to its modulation to the length of the Fabry-Perot-like.更多还原