Three-layer tri-wavelength broadband antireflective coatings built from refractive indices controlled silica thin films

@article{Ye2016ThreelayerTB,
  title={Three-layer tri-wavelength broadband antireflective coatings built from refractive indices controlled silica thin films},
  author={Longqiang Ye and Xinxiang Zhang and Y. S. Zhang and Yuanyang Li and Wanguo Zheng and Bo Jiang},
  journal={Journal of Sol-Gel Science and Technology},
  year={2016},
  volume={80},
  pages={1-9}
}
A three-layer tri-wavelength broadband antireflective (AR) coating with 100 % transmittance simultaneously at 1064, 532 and 355 nm was designed using TFCalc™ thin film design software. The refractive indices for the bottom, middle and top layers of the designed AR coating are 1.33, 1.21 and 1.10, respectively. To realize the designed AR coating, a template-free sol–gel process was proposed to regulate the refractive index of silica film from 1.09 to 1.44 by simple hybridization. Silica films… CONTINUE READING

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Cross-sectional SEM (a) and TEM (b) photograph of the three-layer AR coating Fig. 9 Transmittance and reflectance spectrum of the tri-wavelength AR coating

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