Chin. Phys. Lett.  2011, Vol. 28 Issue (8): 084205    DOI: 10.1088/0256-307X/28/8/084205
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Optical Properties of BDK-Doped Highly Photosensitive Sol-Gel Hybrid Film
XU Ming**, SHEN Wei-Dong**, ZHANG Yue-Guang, ZHEN Hong-Yu, LIU Xu
State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
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XU Ming, SHEN Wei-Dong, ZHANG Yue-Guang et al  2011 Chin. Phys. Lett. 28 084205
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Abstract 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 at λ = 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.
Keywords: 42.70.Gi      42.79.Wc      78.20.Ci     
Received: 15 April 2011      Published: 28 July 2011
PACS:  42.70.Gi (Light-sensitive materials)  
  42.79.Wc (Optical coatings)  
  78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/8/084205       OR      https://cpl.iphy.ac.cn/Y2011/V28/I8/084205
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XU Ming
SHEN Wei-Dong
ZHANG Yue-Guang
ZHEN Hong-Yu
LIU Xu
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