Surface plasmon localization-based Raman spectroscopy on nanohole arrays with particle manipulation

Kwanhwi Ko; Hajun Yoo; Hyunwoong Lee; Young Hee Seo; Sangheon Han; Won Seok Chang; Donghyun Kim

doi:10.1117/12.3028712

4 October 2024 Surface plasmon localization-based Raman spectroscopy on nanohole arrays with particle manipulation

Kwanhwi Ko, Hajun Yoo, Hyunwoong Lee, Young Hee Seo, Sangheon Han, Won Seok Chang, Donghyun Kim

Proceedings Volume 13117, Enhanced Spectroscopies and Nanoimaging 2024; 1311717 (2024) https://doi.org/10.1117/12.3028712
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Conference Poster

Abstract

Localized surface plasmon was formed with plasmonic nanohole arrays for measurement of the Raman spectrum in polystyrene beads. For the selective acquisition of enhanced Raman signals, we used the surface-enhanced Raman spectroscopy (SERS) system employing particle manipulation within the electrode chip. This integration involves the amalgamation of metal nanostructures and microelectrodes to assess the electrophysiological characteristics of microparticles. The manipulation of particle movement, contingent upon their electrical properties such as conductivity and permittivity, can be controlled through modulation of the frequency of the applied alternating current field. In our integrated system, Raman spectroscopy can be conducted with enhanced intensity. Real-time measurement of enhanced Raman scattering is achieved by controlling the direction of force exerted on single particle and selectively trapping it on the nanostructured surfaces.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kwanhwi Ko, Hajun Yoo, Hyunwoong Lee, Young Hee Seo, Sangheon Han, Won Seok Chang, and Donghyun Kim "Surface plasmon localization-based Raman spectroscopy on nanohole arrays with particle manipulation", Proc. SPIE 13117, Enhanced Spectroscopies and Nanoimaging 2024, 1311717 (4 October 2024); https://doi.org/10.1117/12.3028712

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