All-optical fabrication of ellipsoidal caps on azobenzene functional polymers.
All-optical fabrication of ellipsoidal caps on azobenzene functional polymers.
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DOI：
10.1364/ol.35.002711
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发表时间：
2010-08
期刊：
影响因子：
3.6
通讯作者：
Jintang Huang;Si Wu;S. Beckemper;A. Gillner;Qijin Zhang;Keyi Wang
中科院分区：
文献类型：
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作者：
Jintang Huang;Si Wu;S. Beckemper;A. Gillner;Qijin Zhang;Keyi Wang
我们通过高功率激光烧蚀和随后的单束诱导质量迁移制备了六角对称的偶氮苯（偶氮）聚合物微椭球帽阵列。利用偏振控制三光束的高功率干涉将圆形凸块阵列直接刻在偶氮聚合物薄膜的表面上。所产生的圆形帽阵列暴露于线偏振光束，并且帽沿照射光束的偏振方向拉伸。构建了偏振光束和偶氮聚合物相互作用产生的梯度力模型，以解释这种偏振引起的微尺度形状变形的机制。
We have fabricated an azobenzene (azo) polymer microellipsoidal cap array of hexagonal symmetry with high-power laser ablation and subsequent single-beam-induced mass migration. High-power interference with polarization-controlled triple beams is utilized to inscribe a circular bump array directly on the surface of the azo polymer film. The produced circular cap array is exposed to the linearly polarized beam, and the caps are stretched along the polarization direction of the irradiating beam. A model of gradient force emerged by the interaction of the polarized beam and azo polymer is constructed to explain the mechanism of such polarization-induced microscale shape deformation.