·160 北京科技大学学报 2002年第2期 参考文献 1999,170:41 8 Miguez H,Lopez C.Photonic Crystal Properties of Packed 1 Gates Byron,Xia Younan.Fabrication and Characteriza- tion of Chirped 3D Photonic Crystals[J].Adv Mate,2000 Submicrometric SiO,Spheres [J].Appl Phys Lett, 1997,71(9:1148 (12:1329 2 Yablonovitch E.Inhibited Spontaneous Emission in Solid- 9 Miguez H.Face Centered Cubic Photonic Bandgap Mater- ials Based on Opal-Semiconductor Composites[J].Joural State Physics and Electronics[JI.Phys Rev Lett,1987,58: of Lightwave Technology,1999.17:1975 2059 3 John S.Strong Localization of Photons in Certain Disor- 10 Subramania G,Constant K.Optical Photonic Crystals dered Dielectric SuperlatticesfJl.Phys Rev Lett,1987.58: Synthesized from Colloidal Systems of Polystyrene Spheres and Nanocrystalline Titania[J].Journal of Light- 2486 4 Mei Dongbin,Liu Hongguang.Visible and Near-infrared wave Technology,1999,17:1970 Silica Colloid Crystals and Photonic Gaps [J].Physical 11 Werner Stober,Arthur Fink.Controlled Growth of Mono- disperse Silica Spheres in the Micron Size Range.Journa Review B PRB,1998.58:35 5 Alfons van Blaaderen,et al.Template-directed Colloid Cry- of Colloid and Interface[J].Science,1968,26:62 stalli-zation[J).Nature,1997,385:321 12 Woodcock L V.Entropy Difference between the Face-cen- tred Cubic and Hexagonal Close-packed Crystal Structu- 6 Sun Hong-Bo,Song Junfeng.Growth and property Charac- res[J].Nature,1997,385:141 terizations of Photonic Crystal Structures Consisting of Colloidal Microparticles[J].J Opt Soc Am,2000,385:321 13 Miguez H.Evidence of FCC Crystallization of SiO,Nan- ospheres[J].Langmuir,1997,131:6009 7 Cheng Bingying.More Direct Evidence of the fcc Arrange- ment for Artificial Opal [J].Optics Communications, Preparation and Characterizaion of Silica Photonic Crystals Made from Ethanol ZHANG hui,ZHAO Xiaofeng,TANG OP,LI Wenchao 1)Material Science and Engineering School,UST Beijing,BEijing 100083,China 2)Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100080 ABSTRACT Reports preparation of artificial opal by sedimention of SiO spheres in ethanol and it's micro- scopic and optical characterization.Results show that artificial opal belongs to analogue fec structure,which is in agreement with theoretical calculations by L.V.Woodcock. 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