Abstract

In this study, surface plasmon resonance (SPR) wavelength shifts due to molecular electronic absorptions in the far-ultraviolet (FUV, < 200 nm) and deep-ultraviolet (DUV, < 300 nm) regions were investigated by attenuated total reflectance (ATR) spectroscopy. Due to the strong absorption in the DUV region, N,N-dimethylformamide (DMF) significantly increased the SPR wavelength shift of Al film. On the other hand, no such shift enhancement was observed in the visible region for Au film because DMF does not have absorbance compared to non-absorbing materials such as water and alcohols. The enhanced SPR wavelength shift, caused by the overlap between SPR and molecular resonance wavelengths in FUV-DUV region, is expected to result in high sensitivity for resonant materials.

Details

Title
Enhanced Surface Plasmon Resonance Wavelength Shifts by Molecular Electronic Absorption in Far- and Deep-Ultraviolet Regions
Author
Tanabe Ichiro 1 ; Tanaka, Yoshito Y 2 ; Watari Koji 3 ; Inami Wataru 4 ; Kawata Yoshimasa 4 ; Ozaki Yukihiro 3 

 Graduate School of Engineering Science, Osaka University, Toyonaka, Japan (GRID:grid.136593.b) (ISNI:0000 0004 0373 3971) 
 Institute of Industrial Science, the University of Tokyo, Meguro, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X) 
 School of Science and Technology, Kwansei Gakuin University, Sanda, Japan (GRID:grid.258777.8) (ISNI:0000 0001 2295 9421) 
 Research Institute of Electronics, Shizuoka University, Hamamatsu, Japan (GRID:grid.263536.7) (ISNI:0000 0001 0656 4913) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2414579039
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.