%0 Journal Article
%T Non-close-packed photonic crystal of TiO2 hollow spheres:Fabrication and photonic bandgap calculation<br>非密堆积TiO2空心微球光子晶体的制备与能带分析
%A Zhu Yong-Zheng
%A Yin Ji-Qiu
%A Qiu Ming-Hui
%A <br>朱永政
%A 尹计秋
%A 邱明辉
%J 物理学报
%D 2008
%I 
%X We have fabricated the non-close-packed photonic crystals of SiO2 microspheres with the help of the modified vertical method, the thermal sintering technology and etching. The face-centered cubic photonic crystals of TiO2 hollow spheres connected by TiO2 cylindrical tubes have been fabricated using silica template. The structure of the non-close-packed opals was characterized by scanning electron microscopy. We performed photonic band-structure calculations of this structure by a plane wave expansion method. The calculations indicate that the photonic bandgaps at all points of the Brillouin zone in non-close-packed structure were opened except point W.
%K hollow sphere
%K non-close-packed
%K photonic crystal
%K photonic bandgap<br>空心微球，
%K 非密堆积，
%K 光子晶体，
%K 光子带隙
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=18AB59BAF67495E5B6E6E984179D4237&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=59906B3B2830C2C5&sid=DE4791A3B2757BFF&eid=4ACAE41FE926050C&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0