Photothermal fixation of laser-trapped polymer microparticles on polymer substrates
Photothermal fixation of laser-trapped polymer microparticles on polymer substrates
复制标题
激光捕获聚合物微粒在聚合物基底上的光热固定
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
S. Sato
中科院分区：
文献类型：
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作者：
J. Won;Inaba Takanori;H. Masuhara;H. Fujiwara;K. Sasaki;Miyawaki Shigeru;S. Sato
通过使用激光操纵技术证明了聚合物微粒到聚合物基底上的光热固定。通过1064 nm Nd3+：钇铝石榴石（YAG）激光依次捕获单个微粒，并将其压在聚合物基底上。掺杂到衬底中或溶解到溶剂中的染料分子吸收Nd3+：YAG激光器的二次谐波脉冲，并将吸收的光转换为热能。据认为，局部温度升高导致的微粒和基板的局部熔化，导致相互粘附。介绍了微固定的工艺过程和条件，并对微固定的机理进行了探讨。
Photothermal fixation of polymer microparticles onto a polymer substrate is demonstrated by using a laser manipulation technique. Individual microparticles were sequentially trapped by a 1064 nm Nd3+:yttrium–aluminum–garnet (YAG) laser light and pressed on a polymer substrate. Dye molecules that are doped into a substrate or dissolved into a solvent absorb the second harmonic pulse of a Nd3+:YAG laser and convert the absorbed light to thermal energy. It is considered that the local temperature elevation led to the local melting of the microparticle and substrate, resulting in mutual adhesion. The processes and microfixation conditions are presented, and the mechanism is discussed.