Shear horizontal surface acoustic waves assisted gold nanoparticles for a highly tunable localized surface plasmon resonance spectrum

Teguh Firmasnyah, Gunawan Wibisono, Eko Tjipto Rahardjo, Jun Kondoh

Research output: Contribution to journalConference articlepeer-review

Abstract

Shear horizontal surface acoustic waves (SH-SAW) are the surface wave generated by the piezoelectric material such as 36XY-LiTaO3after feed using electric signal via interdigital transducer (IDTs). SH-SAW was applied for many applications such as biosensors, physical and chemical sensors. Another interesting phenomenon is localized surface plasmon resonance (LSPR). LSPR effect refers to the collective oscillation of conduction electrons band at the metallic NPs structure while interacting with a specific wavelength of incident light. However, the interaction between SH-SAW vibration with LSPR is still rarely studied. Here, we propose investigating the interaction between SH-SA and LSPR by fabricating gold nanoparticles (AuNPs) at the middle part of the SH-SAW device. As a result, SH-SAW was assisted AuNPs vibration and produced a blue-shift effect with high capability tunable the LSPR spectrum. Finally, this research can make a bridge between SH-SAW and LSPR technology to create tunable LSPR spectrum and multifunctional sensors.

Original languageEnglish
JournalIEEE International Ultrasonics Symposium, IUS
DOIs
Publication statusPublished - 2021
Event2021 IEEE International Ultrasonics Symposium, IUS 2021 - Virtual, Online, China
Duration: 11 Sept 201116 Sept 2011

Keywords

  • blue-shift
  • LSPR
  • SH-SAW
  • tenability

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