Plasmonic nanocore in a water microdroplet with optical vortex

Haruki Kawaguchi; Kie Umesato; Kanta Takahashi; Keisaku Yamane; Kein-ichi Yuyama; Satoyuki Kawano; Katsuhiko Miyamoto; Takashige Omatsu

doi:10.1117/12.2594071

1 August 2021 Plasmonic nanocore in a water microdroplet with optical vortex

Haruki Kawaguchi, Kie Umesato, Kanta Takahashi, Keisaku Yamane, Kein-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Takashige Omatsu

Author Affiliations +

Proceedings Volume 11812, Molecular and Nano Machines IV; 118120C (2021) https://doi.org/10.1117/12.2594071
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States

Abstract

Plasmonic nanostructures enable us to enhance light fields at nanoscale beyond diffraction limit, thereby offering us metamaterials and plasmonic crystals to realize exotic light-matter interactions, including negative refractive index, invisible cloaking, and perfect absorption. We here demonstrate, for the first time to be the best of our knowledge, the creation of a single water microdroplet with a single plasmonic Au nanoparticle (~150 nm) core (plasmonic nanocore) by employing the optical vortex induced forward transfer. The microdroplet can be easily trapped to form a single plasmonic nanocore on a receiver substrate with a spatial resolution beyond the diffraction limit. Going beyond conventional fabrication processes for plasmonic structures, such as lithography technologies based on electron and ion beams, such plasmonic nanocore formation in a water microdroplet should offer us new fabrication technology for plasmonic structures.

Conference Presentation

Citation Download Citation

Haruki Kawaguchi, Kie Umesato, Kanta Takahashi, Keisaku Yamane, Kein-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, and Takashige Omatsu "Plasmonic nanocore in a water microdroplet with optical vortex", Proc. SPIE 11812, Molecular and Nano Machines IV, 118120C (1 August 2021); https://doi.org/10.1117/12.2594071

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