Broadband plasmon nanofocusing for nanoscale optical switching of photochromic materials

Takayuki Umakoshi; Haruki Kidoguchi; Hiroshi Arata; Prabhat Verma

doi:10.1117/12.2675682

5 October 2023 Broadband plasmon nanofocusing for nanoscale optical switching of photochromic materials

Takayuki Umakoshi, Haruki Kidoguchi, Hiroshi Arata, Prabhat Verma

Proceedings Volume PC12654, Enhanced Spectroscopies and Nanoimaging 2023; PC1265404 (2023) https://doi.org/10.1117/12.2675682
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Plasmon nanofocusing enables to create an intense nanoscale light source through super-focusing of plasmons propagating on a metallic tapered structure toward its apex. Among various unique characteristics of plasmon nanofocusing, the broadband property has recently been gaining attention in the nanophotonics field, owing to several successful applications such as broadband super-resolution spectral imaging. Here, we introduce a more active way to apply broadband plasmon nanofocusing, which is nanoscale optical switching of electronic states of photochromic materials by ultraviolet and visible plasmon nanofocusing. We will also introduce a few more new applications of broadband plasmon nanofocusing such as absorption sensing.

Conference Presentation

Citation Download Citation

Takayuki Umakoshi, Haruki Kidoguchi, Hiroshi Arata, and Prabhat Verma "Broadband plasmon nanofocusing for nanoscale optical switching of photochromic materials", Proc. SPIE PC12654, Enhanced Spectroscopies and Nanoimaging 2023, PC1265404 (5 October 2023); https://doi.org/10.1117/12.2675682

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