Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters
5 years ago

Photofluidic Near-Field Mapping of Electric-Field Resonance in Plasmonic Metasurface Assembled with Gold Nanoparticles

Photofluidic Near-Field Mapping of Electric-Field Resonance in Plasmonic Metasurface Assembled with Gold Nanoparticles
Young Jae Song, Joohyun Lee, Ji-Hyeok Huh, Dae-Woong Jung, Seungwoo Lee, Gi-Ra Yi, Kwangjin Kim, Minwoo Kim, Mun Seok Jeong, Hwi Je Woo
We present a near-field mapping of electric fields from the individual superspherical and ultrasmooth gold nanoparticles (AuNPs) and artificially assembled AuNP nanostructures by measuring the reconfiguration of an azobenzene-containing polymer(azo-polymer) film. Various configurations of AuNPs and the azo-polymer were studied with atomic force microscopy measurements and calculations. The interference was systematically studied with AuNP dimers of various gap distances and different embedding depth in the polymer film. Finally, we successfully demonstrated the interference of standing waves in artificially assembled plasmonic metasurface.

Publisher URL: http://dx.doi.org/10.1021/acs.jpclett.7b01307

DOI: 10.1021/acs.jpclett.7b01307

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