Fabrication of surface and internal refraction structure for antireflective glass

• Project/Area Number: 15K18228
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Kitami Institute of Technology
• Principal Investigator: Sakai Daisuke 北見工業大学, 工学部, 助教 (10534232)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: ガラス / コロナ放電 / 微細構造 / 反射 / 厳密結合波理論 / RCWA法 / 選択堆積 / 反射防止 / 厳密結合波解析法 / 気相堆積

Outline of Final Research Achievements

Light is reflected at the interface between different refractive index materials. The reflectance depends on the difference of the refractive indices. For example, 4% of light is reflected at one-side of a commercially available transparent glass. In this study, we researched micro-refractive structural formation on/in the glass for antireflection. Generally, it is not easy to fabricate the microstructure to glass because of its high hardness and softening temperature. Our proposed technique using corona discharge selective deposition successfully formed the SiO2 microstructure onto the soda-lime silicate glass under the experimental condition below 200 °C without vacuum equipment and corrosive gas. Furthermore, the reflectance from the glass with refractive microstructure was simulated by rigorous coupled wave analysis.

Research Products

• [Journal Article] Selective Deposition of SiO2 on Ion Confuctive Area of Soda-lime Glass Surface (2016)
  • Author(s): D. Sakai, K. Harada, Y. Hara, H. Ikeda, S. Funatsu, K. Uraji, T. Suzuki, Y. Yamamoto, K. Yamamoto, N. Ikutame, K. Kawaguchi, H. Kaiju and J. Nishii
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 1-7
  • DOI: 10.1038/srep27767
  • Peer Reviewed / Open Access
• [Presentation] コロナ放電を用いたガラスのパターニング (2018)
  • Author(s): 酒井 大輔，中林 滉平, 桜井 翔, 高橋 佳太, 兼好 啓太, 原田 建治, 柴田 浩行
  • Organizer: 第53回応用物理学会北海道支部/第14回日本光学会北海道支部 合同学術講演会
• [Presentation] Surface relief formation of hologram in soda-lime silicate glass transferred by corona discharge (2017)
  • Author(s): Daisuke Sakai, Kohei Nakabayashi, and Kenji Harada
  • Organizer: OPTICS & PHOTONICS International Congress 2017 (IP 2017)
  • Int'l Joint Research
• [Presentation] Fabrication of Microstructure on Soda-lime Silicate Glass Using Corona Discharge (2016)
  • Author(s): D. Sakai, M. Abe, K. Harada, T. Omatsu, I. Yoshida, T. Nishiura, T. Takemori, J. Nishii, and H. Shibata
  • Organizer: The Sixth Japan-Korea Workshop on Digital Holography and Information Photonics (DHIP2016)
  • Place of Presentation: Sapporo convention center (北海道・札幌市)
  • Year and Date: 2016-12-19
  • Int'l Joint Research
• [Presentation] Imprinted single-armed chiral surface relief on soda-lime silica glass (2016)
  • Author(s): G. Juman, I. Yoshida, K. Masuda, S. Nakano, D. Sakai, K. Harada, M. Katsuhiko, T. Omatsu
  • Organizer: The 3rd Optical manipulation conference (OMC2016)
  • Place of Presentation: Pacifico Yokohama (神奈川県・横浜市)
  • Year and Date: 2016-05-20
  • Int'l Joint Research
• [Presentation] コロナ放電による光渦誘起表面レリーフのガラス転写 (2016)
  • Author(s): 増田圭吾、Guzhaliayi Juman、吉田一貴、中野翔吾、酒井大輔、原田健治、宮本克彦、尾松孝茂
  • Organizer: 第63回応用物理学会春季学術講演回
  • Place of Presentation: 東工大大岡山キャンパス
  • Year and Date: 2016-03-19
• [Presentation] コロナ放電により選択的に堆積されるSiO2の特性 (2015)
  • Author(s): 酒井大輔、原田建治、原悠一郎、西井準治
  • Organizer: 第76回応用物理学会秋季学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-09-13