| 池厚对SiO2胶体光子带隙的影响 |
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| 引用本文： | 何拥军,苏慧敏,王霞,汪河洲,唐芳琼,董鹏. 池厚对SiO2胶体光子带隙的影响[J]. 光学学报, 2002, 22(2): 20-221 |
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| 作者姓名： | 何拥军 苏慧敏 王霞 汪河洲 唐芳琼 董鹏 |
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| 作者单位： | 中山大学超快速激光光谱学国家重点实验室,广州,510275;广东省电力集团公司通信中心,广州,510600;中山大学超快速激光光谱学国家重点实验室,广州,510275;中国科学院感光化学研究所,北京,100101;石油大学重质油加工国家重点实验室,北京,102200 |
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| 基金项目： | 国家自然科学基金 (19934 0 0 2、198740 83),教育部重点基金,广东省自然科学基金资助课题 |
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| 摘 要： | 在薄池中,胶体晶体生长的速度比在厚池中快而且质量好。不同分散度的小球自排的实验结果表明：较差分散度的SiO2小球在超薄池中也能形成质量较好的单昌。光子带隙波长在薄池中有明显的红移,池厚为0.07mm的胶体单晶的带隙波长比池厚为1mm的胶体单晶的带隙波长红移了24nm。
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| 关 键 词： | 光子带隙 胶体晶体 薄池 |
Photonic Band Gap in Thickness Dependent SiO2 Colloidal Crystals |
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| He Yongjun ),) Su Huimin ) Wang Xia ) Wang Hezhou ) Tang Fangqiong ) Dong Peng ) ),State Key Laboratory of Ultrafast Laser Spectroscopy,Zhongshan University,Guangzhou ),Guangdong Electric Power Telecommunicatio. Photonic Band Gap in Thickness Dependent SiO2 Colloidal Crystals[J]. Acta Optica Sinica, 2002, 22(2): 20-221 |
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| Authors: | He Yongjun ) ) Su Huimin ) Wang Xia ) Wang Hezhou ) Tang Fangqiong ) Dong Peng ) ) State Key Laboratory of Ultrafast Laser Spectroscopy Zhongshan University Guangzhou ) Guangdong Electric Power Telecommunicatio |
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| Affiliation: | He Yongjun 1),2) Su Huimin 1) Wang Xia 1) Wang Hezhou 1) Tang Fangqiong 3) Dong Peng 4) 1),State Key Laboratory of Ultrafast Laser Spectroscopy,Zhongshan University,Guangzhou 510275 2),Guangdong Electric Power Telecommunicatio |
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| Abstract: | The colloidal crystals of SiO 2 spheres were grown in cells of different thickness. The results show that the colloidal crystal grows much quickly in 0.07 mm cell than that in 1 mm cell, and the crystal quality in 0.07 mm cell is much better than that in 1 mm cell. In ultra-thin cell, the high quality colloidal crystal can be grown with large diametrical error of the silica spheres. The band gap of the colloidal crystal in 0.07 mm cell has a red shift of 24 nm over that in 1 mm cell. |
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| Keywords: | photonic band gap colloidal crystal thin cell |
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