Giant circular dichroic SHG behavior of double SP resonant chiral aluminum nanorod dimer structures

A. Sugita; K. Muroi; S. Tamotsu

doi:10.1117/12.2676362

5 October 2023 Giant circular dichroic SHG behavior of double SP resonant chiral aluminum nanorod dimer structures

A. Sugita, K. Muroi, S. Tamotsu

Proceedings Volume 12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI; 126480D (2023) https://doi.org/10.1117/12.2676362
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Conference Poster

Abstract

This paper reports on the giant circular dichroic second-harmonic generation (CD-SHG) behavior of double SP resonant chiral Al nanorod (AlNR) dimer structures. The two AlNRs are aligned in a straight line. It becomes chiral, when one of the AlNRs is shifted laterally from it. We obtained CD-SHG signals up to 0.5 for the corresponding amount of the shift. Additionally, the sign of the CD-SHG was reversed, when the sign of the shift was reversed. The amount of the CD-SHG was flexibly tunable by changing the amount of the shift, which was the uniqueness of the present chiral plasmonic nanostructure.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

A. Sugita, K. Muroi, and S. Tamotsu "Giant circular dichroic SHG behavior of double SP resonant chiral aluminum nanorod dimer structures", Proc. SPIE 12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, 126480D (5 October 2023); https://doi.org/10.1117/12.2676362

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