主动热等离子体实验的数值模拟
Numerical modeling of active thermo-plasmonics experiments
摘要：
在本文中，我们提出了一个简单而强大的数值方法，能够预测，具有高精度，光热效应发生的金纳米粒子的安排下，外部施加的应变。物理系统在COMSOL Multiphysics仿真平台上进行了数值实现。金纳米颗粒分布由线偏振光激发。通过考虑系统在静止和机械应力的作用下，我们分析了消光截面，我们观察到在纳米级的热的生产。这项工作的目的是描述如何敏感的局部温度的金纳米粒子的安排是局部光热热点的形成。
英文摘要：
In this paper, we present a simple and robust numerical method able to predict, with high accuracy, the photo-thermal effects occurring for a gold nanoparticles arrangement under externally applied strain. The physical system is numerically implemented in the COMSOL Multiphysics simulation platform. The gold nanoparticles distributions are excited by linearly polarized light. By considering the system at rest and under the action of a mechanical stress, we analyze the extinction cross section, and we observe the production of heat at the nanoscale. The purpose of this work is to describe how sensitive the local temperature of the gold nanoparticles arrangement is to the formation of localized photo-thermal hot spots.
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