過渡レンズ効果における光・物質・温度場の相互作用の基礎研究, 二次元温度場における伝播特性

概要

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Recent advances in measurement techniques using the photo-thermal effect have drawn more and more attention to the application in various fields. Especially, laser measurements are becoming increasingly important for the thermal design of electronic devices because these measurements can be applied to non-invasive and non-destructive measurement [1, 2]. We focus on the transient lens effect, which is a well-known photo-thermal phenomenon. As this effect is caused by the change of thermal properties or other physical properties, the measurements using this effect have the possibility to measure various materials information. This phenomenon has the optical property of a concave lens since the refractive index distribution on the optical axis is formed when the liquid is irradiated. One reason for the refractive index distribution in the liquid is the temperature distribution in the liquid when it is irradiated. In this research we investigate the interaction between the intensity distribution of the probe beam and temperature distribution on the Transient lens effect, in order to develop fluidic optical devices and non-invasive, non-destructive measurement.
2011-04-01