Banerjee Kaustubh, Rajaeipour Pouya, Ataman Çağlar, Zappe Hans
Appl Opt. 2018 Aug 1;57(22):6338-6344. doi: 10.1364/AO.57.006338.
We introduce a transmissive refractive adaptive optics system featuring a deformable transparent optofluidic wavefront modulator and a sensorless wavefront error estimation algorithm. The wavefront modulator consists of a cavity filled with an optical liquid which is sealed by a deformable elastic polymer membrane. Deformation of the membrane is achieved through electrostatic actuation using 25 transparent indium tin oxide electrodes buried in the cavity. Modulation of the two-dimensional phase distribution generated by the system is performed using open loop control both with and without active wavefront sensing. For the latter, a progressive modal decomposition algorithm is used to estimate and correct distortion in the point-spread function (PSF) of the wavefront arising due to the optical system and other sources of wavefront distortion. Using this control method, we experimentally demonstrate high-fidelity recreation of Zernike modes up to the fourth order, and blind (sensorless) PSF correction in a wide-field microscope.
我们介绍了一种透射式折射自适应光学系统，该系统具有可变形的透明光流体波前调制器和无传感器波前误差估计算法。波前调制器由一个充满光学液体的腔室组成，该腔室由可变形的弹性聚合物膜密封。膜的变形是通过使用埋入腔室的25个透明氧化铟锡电极进行静电驱动来实现的。该系统生成的二维相位分布的调制通过开环控制来执行，无论有无有源波前传感。对于后者，使用渐进模态分解算法来估计和校正由于光学系统和其他波前畸变源而导致的波前点扩展函数（PSF）中的畸变。使用这种控制方法，我们通过实验证明了在宽视场显微镜中高达四阶的泽尼克模式的高保真再现以及盲（无传感器）PSF校正。
