论文标题
具有不透明镜头田间变换理论通过散射介质通过散射介质的高性能传播
High-performance transmission of optical vortices through scattering media with opaque-lens field transformation theory
论文作者
论文摘要
生物组织的光散射始终阻碍了涡流束在生物医学领域的应用。最近，波前塑形技术显示了通过散射介质聚焦结构化光场的潜力。在此，我们提出了一种新的理论来描述不透明镜头的现场变换特性。该理论使通过良好设计入射场通过指定的振幅和相位剖面来生成焦点。我们通过实验生成带有各种拓扑电荷的Doughnut-foci来验证该理论的有效性，并且该焦点与理论预测非常匹配。同时，我们还分析了我们方法的局限性，它表明培养基的厚度与事件领域的接受空间带宽之间存在权衡。我们的方法将激发涡流和动力学中涡流束的深度组织应用的新研究思想，这对于众多潜在的生物 - 光子技术非常重要。
The applications of vortex beam in biomedical field are always hindered by light scattering of biological tissues. Recently wavefront shaping technology has shown the potential in focusing a structured light field through scattering media. Herein we have proposed a novel theory to describe the field transformation property of the opaque lens. This theory makes it possible to generate foci with specified amplitude and phase profiles by well-designing the incident field. We verify the validity of this theory by experimentally generating doughnut-shaped foci with various topological charges, and the foci match well with the theoretical predictions. Meanwhile, we have also analyzed the limitations of our approach, and it reveals that there is a trade-off between the thickness of the medium and the acceptance spatial bandwidth of the incident field. Our approach will inspire new research ideas for the deep-tissue applications of vortex beam in optics and dynamics, which is significant to numerous potential bio-photonics technologies.
