D'Angelo Milena, Pepe Francesco V, Garuccio Augusto, Scarcelli Giuliano
Dipartimento Interateneo di Fisica, Università degli studi di Bari, I-70126 Bari, Italy.
INFN, Sezione di Bari, I-70126 Bari, Italy.
Phys Rev Lett. 2016 Jun 3;116(22):223602. doi: 10.1103/PhysRevLett.116.223602.
Plenoptic imaging is a promising optical modality that simultaneously captures the location and the propagation direction of light in order to enable three-dimensional imaging in a single shot. However, in standard plenoptic imaging systems, the maximum spatial and angular resolutions are fundamentally linked; thereby, the maximum achievable depth of field is inversely proportional to the spatial resolution. We propose to take advantage of the second-order correlation properties of light to overcome this fundamental limitation. In this Letter, we demonstrate that the correlation in both momentum and position of chaotic light leads to the enhanced refocusing power of correlation plenoptic imaging with respect to standard plenoptic imaging.
全光成像技术是一种很有前景的光学模态，它能同时捕获光的位置和传播方向，从而实现单次三维成像。然而，在标准全光成像系统中，最大空间分辨率和角分辨率在根本上相互关联；因此，可实现的最大景深与空间分辨率成反比。我们建议利用光的二阶相关特性来克服这一基本限制。在本信函中，我们证明了混沌光在动量和位置上的相关性会使相关全光成像相对于标准全光成像具有更强的重聚焦能力。
