Anti-Stokes fluorescence imaging of microscale thermal fields in thin films

作者：Kuzmin A N; Baev A; Kachynski A V; Fisher T S; Shakouri A; Prasad P N^*

来源：Journal of Applied Physics, 2011, 110(3): 033512.

DOI：10.1063/1.3606429

We demonstrate that the in-plane thin film heat transport can be accurately mapped via confocal anti-Stokes fluorescence imaging using fluorescent dye probes and nanoheaters. We employ 3D finite elements analysis to evaluate the thermal conductivity of a control sample and to assess the validity of a point heat source approximation. We have found that this approximation is adequate with use of a tightly focused laser beam, providing a robust means for determining the thermal conductivity of a sample under investigation.

• 出版日期2011-8-1