Abstract
A surface acoustic wave (SAW) has the ability to manipulate droplets, and a localized surface plasmon resonance (LSPR) is expected to be utilized for biosensors. By integrating both of them on a single substrate, it is possible to create a new microfluidic system. In order to achieve this goal, the interaction the SAW with the LSPR was investigated by fabricating the substrate and measuring. As a result, it was found that the reflectance characteristics of the LSPR decreased and the spectrum shift in the short wavelength direction was observed during the SAW generated. The reason was experimentally considered and found that the LSPR was influenced from the temperature distribution on the SAW device. On the other hand, the increase of the SAW amplitude was observed by the LSPR excited. The results obtained indicate that control of the temperature is necessary to integrate the SAW and LSPR on the same substrate.
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