Optical Properties of BDK-Doped Highly Photosensitive Sol-Gel Hybrid Film  

作　　者：XU Ming SHEN Wei-Dong ZHANG Yue-Guang ZHEN Hong-Yu LIU Xu 许明;沈伟东;章岳光;甄红宇;刘旭(State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,Hangzhou 310027)

机构地区：[1]State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,Hangzhou 310027

出　　处：《Chinese Physics Letters》2011年第8期115-118,共4页中国物理快报（英文版）

基　　金：by the Zhejiang Qianjiang Talent Project(2010R10008),and Zhejiang Provincial Natural Science Foundation(Y1090504).

摘　　要：A new organic-inorganic hybrid material doped with BDK that exhibits a large photo-induced change in optical properties is prepared by the sol-gel method.The photosensitivity of the film under ultraviolet irradiation is investigated with various exposure times.An increase in refractive index from 1.558 to 1.592 atλ=550 nm is observed together with a 57.3%expansion in physical thickness.The film's optical thickness exhibits an exponential change with the irradiation time.The photo-decomposition of BDK organic groups confirmed by the infrared absorption spectrum contributes to the photosensitive mechanism.A first example of photo-patterning is finally presented by direct light writing.

关 键 词：FILM ULTRAVIOLET finally 

分 类 号：TB3[一般工业技术—材料科学与工程]