鬼散射的理论和应用研究

The ordinary light scattering techniques are based on the measurement of the light fields scattered by the scatters. Inspired by the recently intensive developments on the ghost imaging techniques, we propose a ghost scattering scheme to investigate the light scattering problems via the nonlocal correlation measurements. We will develop a detailed theory to deal with ghost scattering with scalar incoherent light sources, and try to experimentally demonstrate the practical feasibility of the ghost scattering technique. Also we will discuss the possible applications on using ghost scattering to reconstruct the distribution and property of the scatters. Further we want to do some research on ghost scattering with vector stochastic electromagnetic light fields and quantum entangled light fields. From this work, we can have a good understanding on the advantages of ghost scattering in comparison with other light scattering techniques, and find the application possibility. The study of ghost scattering will greatly improve the research on light scattering, generalize the application of ghost imaging, and lead to novel light scattering technique.

通常光散射技术都是直接测量入射光场被散射体散射后形成的散射光场分布。受到近十几年鬼成像领域蓬勃发展的影响，在本项目中我们将基于非局域关联测量的鬼成像技术推广以用来研究光散射问题。我们计划详细研究部分相干的标量随机光场的鬼散射理论，从验证鬼散射实际可行性的角度来开展鬼散射的演示性实验工作，并探讨鬼散射技术应用于反演散射物体的散射势分布的可能性。本项目同时也包括对矢量随机电磁光场和量子态光场的鬼散射研究。本项目的完成对鬼散射在光散射研究中所具备的优势，适合发挥作用的场合，具体实际应用的可行性等问题有较全面的了解，将有助于促进光散射的研究，推广鬼成像的应用，发展出新的光散射探测技术。

通常光散射技术都是直接测量入射光场被散射体散射后形成的散射光场分布。受到近十几年鬼成像领域蓬勃发展的影响，在本项目中我们推广了基于非局域关联测量的鬼成像技术来用来研究光散射问题。我们得到了部分相干的标量随机光场的鬼散射理论，探讨了鬼散射技术应用于反演散射物体的散射势分布的可能性，研究了矢量随机电磁光束的鬼散射问题。同时我们较详细地研究了利用鬼成像中实现物体的相位分布重建，对透射物体和反射物体的鬼衍射提出了三步、四步相移技术，对透射物体的鬼成像提出了一种五步相移技术，能够通过简单计算直接获得物体的相位分布。获得的成果有助于促进光散射的研究，推广鬼成像的应用，