Khonina Svetlana N, Ustinov Andrey V, Volotovskiy Sergey G, Ivliev Nikolay A, Podlipnov Vladimir V
Appl Opt. 2020 Oct 10;59(29):9185-9194. doi: 10.1364/AO.398620.
The paper discusses photoinduced microrelief formation in a film of an azopolymer. A theoretical study of the effect of laser beam polarization on the balance of optical forces acting under the direct action of paraxial Gaussian beams on the irradiated substance was made. We show that taking into account the gradient and scattering components of the force does not allow us to correctly describe the shape of the microasperities obtained on a carbazole-containing azopolymer. An approximation function is presented that describes the dependence of the microasperities' shapes on the non-gradient component of the optical force of laser radiation in the absence and presence of a vortex phase. A comparative analysis of the approximation results and experimentally obtained microreliefs was carried out.
本文讨论了偶氮聚合物薄膜中的光致微浮雕形成。对激光束偏振对在傍轴高斯光束直接作用下作用于被辐照物质的光学力平衡的影响进行了理论研究。我们表明，考虑力的梯度和散射分量并不能使我们正确描述在含咔唑偶氮聚合物上获得的微凸起形状。提出了一个近似函数，该函数描述了在不存在和存在涡旋相位的情况下微凸起形状对激光辐射光力非梯度分量的依赖性。对近似结果与实验获得的微浮雕进行了对比分析。
