Refractive opto-fluidic wavefront modulator with electrostatic push-pull actuation
Refractive opto-fluidic wavefront modulator with electrostatic push-pull actuation
复制标题
具有静电推挽驱动功能的折射光流波前调制器
DOI：
10.1117/12.2507040
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Ç. Ataman
中科院分区：
文献类型：
--
作者：
K. Banerjee;P. Rajaeipour;H. Zappe;Ç. Ataman
二维空间波前实时调制是自适应光学、激光整形等应用的重要工具。基于微镜的MEMS波前调制器已经大大降低了实际波前调制的成本，但由于其反射操作而导致的系统复杂性仍然是令人望而却步的。为了解决这个问题，我们在这里展示了一种高度小型化的静电驱动光流体透射式相位调制器，它能够通过使用流体机械耦合来实现正负相移。该方法基于独特的推挽式静电驱动概念，在设计中利用了固有的液体-机械耦合，并且没有极化和衍射影响。这种光流学位相调制器能够高保真地校正高达5阶径向泽尼克多项式模式的像差，并通过使用无传感器波前估计算法，允许实现完全在线的自适应光学系统。
Two-dimensional spatial wavefront modulation in real-time is an essential tool for applications such as adaptive optics and laser beam shaping. Micro-mirror-based MEMS wavefront modulators have led to a major reduction in the cost of practical wavefront modulation, but the system complexities due to their reflective operation are still prohibitive. To address this issue, we demonstrate here a highly-miniaturized electrostatically actuated optofluidic transmissive phase modulator capable of positive or negative phase shifting through the use of hydromechanical coupling. The approach is based on a unique push-pull electrostatic actuation concept that exploits the inherent liquid-mechanical coupling in the design and is free of polarization and diffraction effects. This optofluidic phase modulator is able to correct aberrations up to 5th radial Zernike polynomial modes with high fidelity and, by use of sensorless wavefront estimation algorithms, allows for the realization of a completely in-line adaptive optics system.
高度小型化的光流控折射自适应光学系统
DOI：
10.1364/aoms.2018.ow2j.6
发表时间：
2018
期刊：
影响因子：
--
作者：
K. Banerjee;P. Rajaeipour;Ç. Ataman;H. Zappe
通讯作者：
H. Zappe
影响因子：
1.9
作者：
Banerjee, Kaustubh;Rajaeipour, Pouya;Zappe, Hans
通讯作者：
Zappe, Hans