CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816, USA.
Department of Physics, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, USA.
Phys Rev Lett. 2015 Nov 13;115(20):203903. doi: 10.1103/PhysRevLett.115.203903. Epub 2015 Nov 10.
In dense multiple scattering media, optical fields evolve through both homogeneous and evanescent waves. New regimes of light transport emerge because of the near-field coupling between individual scattering centers at mesoscopic scales. We present a novel propagation model that is developed in terms of measurable far- and near-field scattering cross sections. Our quantitative description explains the increase of total transmission in dense scattering media and its accuracy is established through both full-scale numerical calculations and enhanced backscattering experiments.
在密集的多散射介质中，光学场通过均匀波和消逝波进行演化。由于微观尺度上各个散射中心之间的近场耦合，出现了新的光传输模式。我们提出了一种新的传播模型，该模型是根据可测量的远场和近场散射截面来开发的。我们的定量描述解释了密集散射介质中总透射率的增加，并且通过全尺度数值计算和增强背散射实验验证了其准确性。
