Date:

2025-04-30

Title of Paper:

Local temperature pattern in plasmonic gold nanoshell: tuning the heat generation

Journal:

The European Physical Journal B

Summary:

Under quasi-steady-state conditions, we investigated the photo-heat conversion in a gold
nanoshell by calculating the local equilibrium temperature distribution. In a thinner gold shell, the hot
spots take place near the poles of both shell-surrounding and core-shell interface, perpendicularly to the
incident field. In a thicker gold shell, the hot spots only take place near the core-shell interface. The
maximum local temperature also depends greatly on the core media and shell thickness. Optimal heat
generation can be obtained with small core dielectric constant and thin shell thickness. The mechanism of
this local heating distribution is explained by the local field enhancement that is induced by the plasmon
coupling.

Co-author:

Jian Zhu, Z. Sun, J.-J. Li, and J.-W. Zhao

Translation or Not:

No

Date of Publication:

2010-12-01