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Updated: May 10, 2025
07:39
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
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Surface plasmon resonance (SPR) sensing utilizing far- and deep-ultraviolet light
1Department of Chemistry, College of Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshima, Tokyo, 171-8501, Japan. itanabe@rikkyo.ac.jp.
Summary
Aluminum-based ultraviolet surface plasmon resonance (SPR) sensors offer enhanced performance for real-time monitoring. These UV-SPR sensors show great potential for medical diagnostics and environmental analysis.
Area of Science:
- Plasmonics
- Nanotechnology
- Spectroscopy
Background:
- Surface plasmon resonance (SPR) typically operates in the visible spectrum.
- Developing SPR sensors for ultraviolet (UV) regions presents unique challenges and opportunities.
Purpose of the Study:
- To develop and demonstrate the application of SPR sensors in the far-ultraviolet (FUV) and deep-ultraviolet (DUV) regions.
- To investigate aluminum (Al) as a plasmonic material for UV-SPR sensors.
- To showcase the practical utility of UV-SPR sensors for real-time monitoring.
Main Methods:
- Utilized an attenuated total reflectance (ATR) spectrometer.
- Deposited aluminum (Al) thin films on prisms for SPR measurements.
- Implemented a flow measurement system for real-time analysis.
Main Results:
- Demonstrated successful operation of Al-based SPR sensors in the FUV and DUV regions.
- Achieved enhanced performance, selectivity, and detection capabilities compared to visible-region SPR sensors.
- Showcased real-time monitoring with a time resolution of 0.1 seconds.
Conclusions:
- Aluminum is a viable plasmonic material for UV-SPR sensors.
- UV-SPR sensors offer significant advantages for various analytical applications.
- This work lays the groundwork for advanced UV plasmonic sensor development.
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