Deposition of a polymer thin film on a silver surface for surface plasmon sensing

被引：0

作者：

Abe, Akinari ^{[1
]}

Chakraborty, Ipsita ^{[2
]}

Matsubayashi, Daiki ^{[3
]}

Noguchi, Tsuyoshi ^{[4
]}

Okino, Akitoshi ^{[4
]}

Kano, Hiroshi ^{[1
,2
,3
,5
]}

机构：

[1] Muroran Inst Technol, Grad Sch Engn, Div Engn, Mizumoto 27-1, Muroran, Hokkaido 0508585, Japan

[2] Muroran Inst Technol, Grad Sch Engn, Mizumoto 27-1, Muroran, Hokkaido 0508585, Japan

[3] Muroran Inst Technol, Grad Sch Engn, Div Informat & Elect Engn, Mizumoto 27-1, Muroran, Hokkaido 0508585, Japan

[4] Tokyo Inst Technol, Lab Future Interdisciplinary Res Sci & Technol, Nagatsuta 4259, Yokohama, Kanagawa 2268501, Japan

[5] Muroran Inst Technol, Coll Design & Mfg Technol, Mizumoto 27-1, Muroran, Hokkaido 0508585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2024年 / 63卷 / 06期

关键词：

surface plasmon resonance (SPR); refractive index sensor; polymer film; spin coating; atmospheric low-temperature plasma; hydrophilicity; MICROSCOPY; POLARITONS;

D O I：

10.35848/1347-4065/ad523f

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a deposition method of a polymer thin film on the silver surface of a surface plasmon sensor for preventing sensitivity degradation in refractive index measurements due to the poor chemical stability of the silver. The deposition of a poly(methyl methacrylate) thin film with a similar to 15 nm thickness was conducted by employing a spin coating technique along with a hydrophilicity enhancement of the silver surface using an atmospheric low-temperature plasma treatment. We experimentally verified the thickness by measuring the propagation constant of the surface plasmon. The measured propagation constants that showed the standard deviation at the order of 10-4 indicated microscopical uniformity. Furthermore, the reproducibility of thickness was experimentally verified.

引用

页数：6

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