Photoinduced surface relief formation on azopolymer films: A driving force and formed relief profile
Photoinduced surface relief formation on azopolymer films: A driving force and formed relief profile
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偶氮聚合物薄膜上的光致表面浮雕形成：驱动力和形成的浮雕轮廓
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
T. Yamanaka
中科院分区：
文献类型：
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作者：
K. Sumaru;T. Fukuda;Tatsumi Kimura;H. Matsuda;T. Yamanaka
通过考虑吸收介质的复极化率，研究了光致表面浮凸（PSR）形成的驱动力。将其引入到一个建立在平面基底上的粘性流体层的流体力学模型中。建立了从驱动力的来源到表面浮凸形成的动力学过程的PSR形成理论模型。利用一维正弦和高斯光束进行了一系列系统的实验，模型计算与实验结果吻合较好。利用该模型对以往文献报道的实验结果进行了评述，结果有力地支持了我们的假设：来自吸收介质与光电场相互作用的驱动力作为体积力作用于光增塑偶氮聚合物。此外，从该模型的考虑，PSR形成的一些重要特征，没有。
A driving force of photoinduced surface relief (PSR) formation is examined by considering the complex electric susceptibility of the absorbing medium. It is introduced into a fluid mechanics model established for the viscous fluid layer on a flat substrate. As a result, a theoretical model for PSR formation covering thoroughly from the origin of the driving force to the dynamic process forming the surface relief is established. A series of systematic experiments are carried out by means of one-dimensional sinusoidal and Gaussian beam irradiation and the results are reproduced well by the model calculation. The experimental results reported in former literature are also reviewed using this model and the result supports strongly our assumption: driving force derived from the interaction between the absorbing medium and optical electric field acts as a body force on the optically plasticized azopolymer. Further, from the consideration based on the model, some important features of PSR formation which have no...