Azobenzene polymer surface deformation due to the gradient force of the optical near field of monodispersed polystyrene spheres
Azobenzene polymer surface deformation due to the gradient force of the optical near field of monodispersed polystyrene spheres
复制标题
单分散聚苯乙烯球光学近场梯度力导致偶氮苯聚合物表面变形
DOI：
10.1103/physrevb.64.195408
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发表时间：
2001
影响因子：
3.7
通讯作者：
Y. Kawata
中科院分区：
文献类型：
--
作者：
T. Ikawa;T. Mitsuoka;M. Hasegawa;M. Tsuchimori;O. Watanabe;Y. Kawata
我们报告的偶氮苯聚合物表面变形的机制，由于光学近场周围的电介质球，小于入射光的波长。我们比较了表面上的变形图案与计算的电场强度分布的球周围，并分析了聚合物表面上的聚合物迁移使用双折射模式原子力显微镜。这种比较和聚合物迁移分析表明，近场梯度力引起的表面变形。
We report on the mechanism of azobenzene polymer surface deformation due to the optical near field around a dielectric sphere that is smaller than the wavelength of the incident light. We compared the deformation pattern on the surface with the calculated intensity distribution of the electric field around the sphere, and analyzed the polymer migration on the polymer surface using tapping-mode atomic force microscopy. This comparison and the polymer migration analysis show that the near-field gradient force induces the surface deformation.