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Plasmonic mesostructures with aligned hotspots on highly oriented mesoporous silica films
| Title: | Plasmonic mesostructures with aligned hotspots on highly oriented mesoporous silica films |
| Authors: | Murai, Shunsuke Browse this author | | Uno, Shiguma Browse this author | | Kamakura, Ryosuke Browse this author | | Ishii, Satoshi Browse this author | | Nagao, Tadaaki Browse this author →KAKEN DB | | Fujita, Koji Browse this author | | Tanaka, Katsuhisa Browse this author |
| Issue Date: | 1-Sep-2016 |
| Journal Title: | Optical Materials Express |
| Volume: | 6 |
| Issue: | 9 |
| Start Page: | 2824 |
| End Page: | 2833 |
| Publisher DOI: | 10.1364/OME.6.002824 |
| Abstract: | Gold mesostructures are fabricated by oblique angle deposition on highly oriented mesoporous silica (MPS) thin films utlizing the periodic surface corrugation on the scale of 10 nm as a prepattern for controlled deposition. Scanning electron microscopy analysis clarified that the mesostructures comprised an array of interconnected gold nanorods oriented in plane to form meso gratings. We measured the surface enhanced Raman scattering (SERS) to demonstrate that the nanosized gaps between the rods act as hotspots. Although the sample was as thin as 8.0 nm, large SERS signals appeared because of the very narrow gaps (< 2 nm). The spatial mapping confirmed the uniform distribution of hotspots over the sample. |
| Rights: | ©2016 Optical Society of America]. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/72125 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 長尾 忠昭
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