Optical Properties of Uniaxially Anisotropic Gold Nanostructures Fabricated by Incline Magnetron Sputtering Process

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2024/12/01

タイトル(英語): Optical Properties of Uniaxially Anisotropic Gold Nanostructures Fabricated by Incline Magnetron Sputtering Process

著者名: Taku Tanaka (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Syunya Saegusa (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Masayuki Naya (Keio University), Takao Fukuoka (Kyoto University), Sho Amano (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Yuichi Utsumi (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Akinobu Yamaguchi (Faculty of Science and Engineering, Toyo University)

著者名(英語): Taku Tanaka (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Syunya Saegusa (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Masayuki Naya (Keio University), Takao Fukuoka (Kyoto University), Sho Amano (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Yuichi Utsumi (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Akinobu Yamaguchi (Faculty of Science and Engineering, Toyo University)

キーワード: surface-enhanced Raman scattering，boehmite，magnetron sputtering process，raman spectroscopy，anisotropy

要約(英語): Surface-enhanced Raman scattering (SERS) is very useful for a spectroscopic technique that can enhance Raman scattering intensity up to 1014 times higher than conventional Raman signal due to the electric field enhancement effect. In this study, we fabricated and evaluated gold nanostructures with SERS activity by using incline magnetron sputtering process. Our fabricated SERS-active substrates enable highly sensitive measurement with wide area over about 20×20 mm2. The formation of a gradient in the thickness of the gold film was confirmed, and the SEM images showed that the gold nanoparticles deposited on boehmite template were in an elliptical structure. To evaluate the characteristics of the substrate, the SERS measurements of 4,4´-bipyridine (4bpy) were performed by using the polarized irradiation laser. The polarization property evaluation results show that the polarization reflects the uniaxial anisotropy of the nanostructures.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.144 No.12 （2024）

本誌掲載ページ: 384-389 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/144/12/144_384/_article/-char/ja/