Department of Physics, Korea University, Seoul 136-701, Korea.
Phys Rev Lett. 2011 Jul 8;107(2):023902. doi: 10.1103/PhysRevLett.107.023902. Epub 2011 Jul 6.
We report that disordered media made of randomly distributed nanoparticles can be used to overcome the diffraction limit of a conventional imaging system. By developing a method to extract the original image information from the multiple scattering induced by the turbid media, we dramatically increase a numerical aperture of the imaging system. As a result, the resolution is enhanced by more than 5 times over the diffraction limit, and the field of view is extended over the physical area of the camera. Our technique lays the foundation to use a turbid medium as a far-field superlens.
我们报告称，由随机分布的纳米粒子组成的无序介质可用于突破传统成像系统的衍射极限。通过开发一种从混浊介质引起的多次散射中提取原始图像信息的方法，我们显著提高了成像系统的数值孔径。结果，分辨率比衍射极限提高了 5 倍以上，视场扩展到相机的物理区域。我们的技术为将混浊介质用作远场超透镜奠定了基础。
