Thermal near-field tuning of silicon Mie nanoparticles

Abstract: Tunable high-refractive-index nanostructures are highly desired for realizing photonic devices with a compact footprint. By harnessing the large thermo-optic effect in silicon, we show reversible and wide thermal tuning of both the far- and near-fields of Mie resonances in isolated silicon nanospheres in the visible range. We perform in situ heating in a transmission electron microscope and electron energy-loss spectroscopy to show that the Mie resonances exhibit large spectral shifts upon heating. We leverage the spectral shifts to demonstrate near-field tuning between different Mie resonances. By combining electron energy-loss spectroscopy with energy-dispersive X-ray analysis, we show a reversible and stable operation of single silicon nanospheres up to a temperature of 1073 K. Our results demonstrate that thermal actuation offers dynamic near-field tuning of Mie resonances, which may open up applications in tunable nonlinear optics, Raman scattering, and light emission.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Thermal near-field tuning of silicon Mie nanoparticles ; volume:10 ; number:16 ; year:2021 ; pages:4161-4169 ; extent:9 ; Nanophotonics ; 10, Heft 16 (2021), 4161-4169 (gesamt 9)

Contributors, Places and Time

• Creator: Assadillayev, Artyom ; Hinamoto, Tatsuki ; Fujii, Minoru ; Sugimoto, Hiroshi ; Raza, Søren

Further information

• DOI: 10.1515/nanoph-2021-0424
• URN: urn:nbn:de:101:1-2022111213114317170195
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:31 AM CEST