Kononenko T V, Dyachenko P N, Konov V I
Opt Lett. 2014 Dec 15;39(24):6962-5. doi: 10.1364/OL.39.006962.
2D photonic crystals formed inside monocrystalline diamond to operate in the IR spectral range are reported. The photonic structures consisting of 150-μm-long graphitized wires arranged in a square matrix with a period of 4 μm were produced by laser writing with ultrashort pulses. Transmittance spectra (λ=1-14 μm) measured for the structures with increasing thickness demonstrate the occurrence of few minima being different for TM and TE polarization modes. Complex refraction index of the laser-modified material was evaluated for the first time in order to be used in computer simulation of the structures.
据报道，在单晶金刚石内部形成的用于红外光谱范围的二维光子晶体。通过超短脉冲激光写入制备了由排列成周期为4μm的正方形矩阵的150μm长的石墨化线组成的光子结构。对厚度增加的结构测量的透射光谱（λ = 1 - 14μm）表明，TM和TE偏振模式的少数最小值出现了差异。首次评估了激光改性材料的复折射率，以便用于结构的计算机模拟。
