Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang, South Korea.
Opt Lett. 2013 Mar 1;38(5):682-4. doi: 10.1364/OL.38.000682.
We demonstrate sub-Rayleigh limit imaging of an object via speckle illumination. Imaging beyond the conventional Rayleigh limit is achieved by illuminating the object with pseudothermal light that exhibits a random speckle pattern. An object image is reconstructed from the second-order correlation measurement and the resolution of the image, which exceeds the Rayleigh limit, is shown to be related to the size of the speckle pattern that is tied to the lateral coherence length of the pseudothermal light.
我们通过散斑照明实现了亚瑞利极限成像。通过用具有随机散斑图案的赝热光照明物体，实现了超越传统瑞利极限的成像。从二阶相关测量重建物体图像，并且所得到的超过瑞利极限的图像分辨率与散斑图案的大小相关，该散斑图案与赝热光的横向相干长度有关。
