23 December 2011 Thermal imaging of micro-structured polymers with high-speed infrared camera
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Abstract
Creating and monitoring micro-scale thermal transfer in micro-structured thin polymer films is presented in this study. Thermal imaging is captured using IR camera equipped with optics designed for the mid- and long- IR wavelengths. The non-contact thermal imaging method is preferred to visualize the distribution of temperature and characterizes the thermal properties of complex multi-component/layered structures of thermal functioning materials. The work is to present a method for thermal wave imaging that is applied to measure the thermal diffusivity of the micro-structured polymer thin films using a modulated laser-diode spot heating irradiated to the rear surface of the film, observed at different modulation frequencies. The procedure is based on the micro-scale thermography and the analysis is based on the computational phase lock-in system for the temporal evolution extracted from the sequence of infrared image. The in-plane surface profiles of the amplitude and phase are precisely calculated and the principle for eliminating the effects of heat loss is examined.
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J. Morikawa, T. Hashimoto, "Thermal imaging of micro-structured polymers with high-speed infrared camera", Proc. SPIE 8204, Smart Nano-Micro Materials and Devices, 82042R (23 December 2011); doi: 10.1117/12.903241; https://doi.org/10.1117/12.903241
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