レーザ光の収束を応用した微小試料の温度伝導率測定法の開発 (新編集方針に基づく論文)

抄録

Considering the increasing necessity to develop a method of microscale measurement of thermal diffusivity, the laser-beam focusing method was studied. The principle is based on the forced Rayleigh scattering method which is capable of absolute high-speed and remote-sensing measurement of fluids and solids. Local values of 100μm in diameter on polymer samples were successfully measured with an estimated error of ±10%. Local anisotropy of the thermal diffusivity due to molecular orientation of poly-methyl-methacrylate was also studied. This is expected to result in a new means of studying the microstructure of materials and local heat transfer of microscale devices.