基于微立体光刻技术的高精度非球面透镜制备

用于具有非球面校正的紧凑型自适应透镜的拓扑面内偏振压电致动

Topological in-plane polarized piezo actuation for compact adaptive lenses with aspherical correction

在这方面的贡献，我们调查的影响，使用平面内偏振压电致动器与拓扑屈曲位移驱动玻璃压电复合膜的自适应透镜与非球面控制。我们发现，上的光焦度和非球面调谐范围的影响是相对较小的，而调谐速度显着提高与第一谐振为1 kHz的13 mm孔径的镜头。

Multiphysics simulation of the aspherical deformation of piezo-glass membrane lenses including hysteresis, fabrication and non-linear effects

In this paper we present and verify the non-linear simulation of an aspherical adaptive lens based on a piezo-glass sandwich membrane with combined bending and buckling actuation. To predict the full non-linear piezoelectric behavior, we measured the non-linear charge coefficient, hysteresis and creep effects of the piezo material and inserted them into the FEM model using a virtual electric field. We further included and discussed the fabrication parameters -- glue layers and thermal stress -- and their variations. To verify our simulations, we fabricated and measured a set of lenses with dif…

非球面透镜设计和成像

Aspherical lens design and imaging

我们设计自由曲面透镜，将任意给定的入射场折射到给定的固定方向。在准域的情况下，我们研究透镜折射到一个预定义的图像一个给定的明亮的对象的存在。我们还分析了存在的反射镜系统，解决了反射的准域和远场问题。

Design and Verification of a Flat-Top Beam Shaper Utilizing Spherical Lenses

We propose a novel coaxial spherical-lens shaping system to achieve a flat-top focus profile by exploiting the spherical aberration of the lens. The well-known aspherical-lens shaping system is compared to ours, and a comparison of etching on silicon is conducted between a Gaussian beam and the one shaped by the proposed system. Analytical and experimental results show that the proposed system is able to achieve flat-top beam shaping using only spherical lenses. Compared with the existing systems, our proposed one is capable of shaping Gaussian beams with different wavelengths and waist radii.…