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首页> 外文期刊>Optical Materials >Optical characterisation of 2D macroporous silicon photonic crystals with bandgaps around 3.5 an d1.3 μm
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Optical characterisation of 2D macroporous silicon photonic crystals with bandgaps around 3.5 an d1.3 μm

机译:带隙约为3.5和d1.3μm的二维大孔硅光子晶体的光学表征

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摘要

Transmission measurements were performed on thin 2D silicon photonic crystal (PCs) with 1-4 crystal rows in order to investigate the effect of a finite structure and to obtain an estimate of the crystal thickness necessary to minimize crosstalk between adjacent waveguides. For wavelengths deep within the H-bandgap a strong exponential decay revealing an attenuation constant of 10 dB per crystal row was measured. For opto-electronic applications, the lattice constant of macroporous Si was successfully downscaled from a pitch of 1.5 to 0.5 μm.
机译:对具有1-4个晶体行的薄二维硅光子晶体(PC)进行了传输测量,以研究有限结构的影响并获得晶体厚度的估算值,以最小化相邻波导之间的串扰。对于在H带隙内很深的波长,测量到的强指数衰减表明每个晶体行的衰减常数为10 dB。对于光电应用,大孔硅的晶格常数已成功地从1.5微米缩小到0.5微米。

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