等离子磁性纳米复合材料的热致应力
Thermal-induced stress of plasmonic magnetic nanocomposites
摘要：
我们提出了理论计算来解释Ag@Fe3O4纳米花的光学和力学性质。利用有效介电近似下的Mie理论和实验吸收谱确定了纳米花的微观结构和光学峰的性质。采用连续介质力学方法研究了激光照射下，由于吸收光能引起的结构内外的热应变场。我们的研究结果提供了简单而全面的描述以前的实验的弹性行为。
英文摘要：
We present theoretical calculations to interpret optical and mechanical properties of Ag@Fe3O4 nanoflowers. The microstructures and nature of optical peaks of nanoflowers are determined by means of the Mie theory associated with effective dielectric approximation and the experimental absorption spectrum. Under laser illumination, the thermal strain fields inside and outside the structure due to the absorbed optical energy are studied using continuum mechanics approach. Our findings provide simple but comprehensive description of the elastic behaviors of previous experiments.
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