Janelia Farm Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia 20147, USA.
Opt Lett. 2011 Mar 15;36(6):870-2. doi: 10.1364/OL.36.000870.
A parallel wavefront optimization method is demonstrated experimentally to focus light through random scattering media. The simultaneous modulation of multiple phase elements, each at a unique frequency, enables a parallel determination of the optimal wavefront. Compared to a pixel-by-pixel measurement, the reported parallel method uses the target signal in a highly efficient way. With 441 phase elements, a high-quality focus was formed through a glass diffuser with a peak-to-background ratio of ∼270. The accuracy and repeatability of the system were tested through experiments.
一种平行波前优化方法被实验证明可用于聚焦光通过随机散射介质。通过同时调制多个相位元件，每个元件在独特的频率下工作，实现了最优波前的并行确定。与逐点测量相比，所报道的并行方法高效地利用了目标信号。使用 441 个相位元件，通过玻璃漫射器形成了高质量的焦点，其峰谷比约为 270。通过实验测试了系统的准确性和可重复性。
