Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Physica Sinica》 2012-20
Add to Favorite Get Latest Update

Ordered mesoporous antireflective films for 1053 nm high power pulse laser

Sun Jing-Hua~(1)2)3)) Xu Yao~(1)) Yan Liang-Hong~(2)) LüHai-Bing~(2)) Yuan Xiao-Dong~(2)) 1)(Key Laboratory of Carbon Materials,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China) 2)(Laser Fusion Research Centre,Chinese Academy of Engineering Physics,Mianyang 621900,China) 3)(Graduate University of the Chinese Academy of Sciences,Beijing 100049,China)  
Single-layer silica films are prepared via evaporation-induced-self-assembling process using triblock copolymer surfactant F127 as template and tetraethoxysiliane as precursor under acidic condition.After ammonia pretreatment.the as-deposited films undergo a thermal decomposition process to remove the surfactant,and the mesopores are formed in film.Three techniques are used to characterize the mesoscopic structure of film,i.e.,grazing-incidence X-ray diffraction,nitrogen adsorption/desorption and transmission electron microscopy.The results indicate that the film has an ordered cage-like porous structure and can be indexed as the body-centered-cubic arrangement.The optical properties of the films are investigated via ellipsometry and UV-VIS-NIR transmission spectrometer.The transmitance can reach up to 99.9%at 1053 nm wavelength.The refractive index varies with the molar ratio of F127/Si.Atomic force microscope is used to probe the surface morphology,and the surface roughness Ra is 1.2 nm.A 1053 nm laser is used to determine the laser damage threshold of film and all the thresholds are higher than 25 J·cm~(-2)(1 ns).This method has a potential application in the preparation of large-aperture antireflective films.
【Fund】: 国家自然科学基金(批准号:10835008)资助的课题~~
【CateGory Index】: O484.41
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved