标题： 斑点光学镊子：利用随机光场进行微操作 显示英文标题

标题： Speckle Optical Tweezers: Micromanipulation with Random Light Fields

摘要： 当前的光学操控技术依赖于精心设计的设置和样品。 尽管在研究实验室中类似的条件通常都能满足，但在环境未被良好控制且事先未知的情况下，操控微粒仍然是一项挑战，因为光学缺陷和散射限制了该技术在实际生活中的应用，例如在生物医学或微流体应用中。 然而，无序结构对相干光的散射会产生斑点，这些是具有明确统计特性的随机衍射图案。 在这里，我们实验演示了如何使斑点场成为一种多功能工具，以高效地执行基本的光学操控任务，如捕获、引导和分选。 我们预计，这些“斑点光镊”的简单性将大大拓宽光学操控在实际应用中的前景。 显示英文摘要

摘要： Current optical manipulation techniques rely on carefully engineered setups and samples. Although similar conditions are routinely met in research laboratories, it is still a challenge to manipulate microparticles when the environment is not well controlled and known a priori, since optical imperfections and scattering limit the applicability of this technique to real-life situations, such as in biomedical or microfluidic applications. Nonetheless, scattering of coherent light by disordered structures gives rise to speckles, random diffraction patterns with well-defined statistical properties. Here, we experimentally demonstrate how speckle fields can become a versatile tool to efficiently perform fundamental optical manipulation tasks such as trapping, guiding and sorting. We anticipate that the simplicity of these "speckle optical tweezers" will greatly broaden the perspectives of optical manipulation for real-life applications.