| JIANG Li,SONG Shao-jie,DU Zuo-juan,HUANG Xiao-zhong,LIU Ji-xun.Preparation and Photonic Band Gap Properties of TiO2/ SiO21-D Photonic Crystal[J],42(5):11-14,28 |
| Preparation and Photonic Band Gap Properties of TiO2/ SiO21-D Photonic Crystal |
| Received:May 10, 2013 Revised:June 15, 2013 |
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| DOI： |
| KeyWord:sol-gel process 1-D photonic crystal reflectance spectrum |
| Author | Institution |
| JIANG Li |
School of Physics and Electronics, Central South University, Changsha , China |
| SONG Shao-jie |
School of Physics and Electronics, Central South University, Changsha , China |
| DU Zuo-juan |
School of Physics and Electronics, Central South University, Changsha , China |
| HUANG Xiao-zhong |
School of Physics and Electronics, Central South University, Changsha , China |
| LIU Ji-xun |
School of Physics and Electronics, Central South University, Changsha , China |
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| Abstract: |
| The one dimension ( 1-D) photonic crystal was prepared by using the sol-gel technology and dip-coating method on glass substrate. Morphology of cross section and thickness of each layer, properties of reflection spectrum were respectively examined. The results show that the thickness values of titania layers and silica layers are respectively 69 nm and 83 nm, the crystalline types of them are anatase and amorphous silica. The structure fabricated has the maximum reflectance of 0 . 94 for the wave length 544 nm and full width at half maximum of the main reflectance peak of FWHM = 194 nm( 486 ~ 680 nm) . the 1-D photonic crystal is calculated with the transfer matrix method, and the calculation results have a good agreement with experimental results. Finally the effect of incidence angle on reflection spectrum of 1-D photonic crystal was discussed. |
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