中红外波段硅基两维光子晶体的光子带隙

Photonic band gap of two-dimensional photonic crystal based on silicon in mid-infrared

利用电化学腐蚀的方法制备了大多孔硅两维光子晶体 .结构图形对称性为正方格子 ,其结构参数为正方形晶格周期a =4 4 μm ,正方形空气柱的边长l=2 μm .并用显微红外光谱仪表征了光谱性质 。

Two-dimensional macroporous photonic crystal with mid-infrared band gap was fabricated by electrochemical etching method in this work. The sample structure is of square lattice with structure parameters: lattice constant a = 4mum and the length of the square lattice structure 1 = 2mum. The reflection spectrum of the sample was measured using the microscopic infrared spectrometer and showed the photonie crystal characteristics.