高质量三维光子晶体的实验制备及理论分析

刘桂强; 廖昱博; 陈艳; 刘忠民

光子学报, 2009, 38 (7): 1707, 网络出版: 2010-05-10

高质量三维光子晶体的实验制备及理论分析

Experiment Fabrication and Theory Analysis of Three-dimension High Quality Photonic Crystals

论文大纲

刘桂强 ^1,*廖昱博 ²陈艳 ¹刘忠民 ¹

作者单位

¹ 江西师范大学物理与通信电子学院，南昌 330022

² 赣南师范学院物理与信息工程学院，江西赣州 341000

光子晶体自组装透射率光子禁带带隙边沿坡度 Photonic crystals Self-assembly Transmission Photonic band gap Photonic band edge slope

摘要

对压强控制自组装法进行了改进，采用了密封硅胶颗粒的强吸水装置，为光子晶体样品的制备提供了一个稳定的温度、湿度和压强环境.将温度、压强分别控制在35 ℃、45 mmHg，利用直径为260 nm的聚苯乙烯胶体球进行了高质量三维光子晶体样品的制备.从理论计算和实验测量等方面对制备的光子晶体样品的结构、质量和性能进行了对比分析，结果表明，利用该实验装置进行光子晶体样品的制备时，可重复性高；制备的光子晶体样品具有较为完美有序的密堆结构，质量较好；在光子晶体样品的Г-L方向有深且窄的光子带隙和陡峭的带隙边沿.光子带隙深度为83%，宽度为0.073，带隙边沿陡峭度为8%/nm，这为超快全光开关等先进的光学设备的研究奠定了基础.

Abstract

The pressure controlled self-assembly method provided recently was improved and a sealed suction setup filled with silica gel spheres was used to retain a stable temperature,humidity and pressure condition for fabricating high-quality three dimension photonic crystals(PCs).PCs were fabricated by polystyrene (PS) colloid spheres with diameter 260 nm at 35℃ and 45 mmHg.The structures,qualities and properties of PCs fabricated were analyzed theoretically and experimentally.The results show that this system can be uesd repeatedly to fabricate high PCs with perfect,ordered and close-packed arrays; deep and narrow photonic band gap(PBG) along Г-L direction and steep photonic band edge(PBE) slope are found.The depth and normalized width of PBG are about 83% and 0.073,respectively.The slope of PBE arrives at 8%/nm which provide a basis for studying advanced optical equipments such as ultra-fast all-optical switches.

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刘桂强, 廖昱博, 陈艳, 刘忠民. 高质量三维光子晶体的实验制备及理论分析[J]. 光子学报, 2009, 38(7): 1707. LIU Gui-qiang, LIAO Yu-bo, CHEN Yan, LIU Zhong-min. Experiment Fabrication and Theory Analysis of Three-dimension High Quality Photonic Crystals[J]. ACTA PHOTONICA SINICA, 2009, 38(7): 1707.

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