Chinese Optics Letters, Volume. 9, Issue 7, 073101(2011)

A novel trilayer antireflection coating using dip-coating technique

Jian Xu... Yi Yin, Haiming Ma, Hui Ye and Xu Liu |Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
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    We report a new structure for broadband antireflection coating by dip-coating technique, which has minimal cost and is compatible with large-scale manufacturing. The coatings are prepared by depositing SiO2 sol-gel film on a glass substrate, subsequently depositing SiO2 single-layer particle coating through electrostatic attraction, and depositing a final very thin SiO2 sol-gel film to improve the mechanical strength of the whole coating structure. The refractive index of the structure changes gradually from the top to the substrate. The transmittance of a glass substrate has been experimentally found to be improved in the spectral range of 400-1,400 nm and in the incidence angle range from 0o to at least 45o. The mechanical strength is immensely improved because of the additional thin SiO2 sol-gel layer. The surface texture can be applied to the substrates of different materials and shapes as an add-on coating.

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    Jian Xu, Yi Yin, Haiming Ma, Hui Ye, Xu Liu, "A novel trilayer antireflection coating using dip-coating technique," Chin. Opt. Lett. 9, 073101 (2011)

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    Paper Information

    Category: Thin films

    Received: Dec. 17, 2010

    Accepted: Jan. 28, 2011

    Published Online: May. 27, 2011

    The Author Email:

    DOI:10.3788/COL201109.073101

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