Switching nanoscale temperature fields with high-order plasmonic modes in transition metal nanorods.

ABSTRACT: Depending on the photoirradiation conditions, metal nanostructures exhibit various plasmonic modes, including dipolar, quadrupolar, and hexapolar modes. This work demonstrates numerically that these high-order plasmonic modes can be used to switch nanoscale temperature distributions during the plasmonic heating of a manganese (Mn) nanorod. The key feature of Mn is its low thermal conductivity. Generally, when noble metal nanostructures are used for plasmonic heating, the nanostructure surface will be almost isothermal regardless of the order of the excited plasmonic modes because of the high thermal conductivity of noble metals, e.g., the thermal conductivity of gold is 314 W m^-1 K^-1. However, unlike noble metals, Mn has a significantly lower thermal conductivi

SUBMITTER: Setoura K 

PROVIDER: S-EPMC10667964 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature