Quantum Ghost Imaging by Sparse Spatial Mode Reconstruction

被引:0
作者
Nothlawala, Fazilah [1 ]
Moodley, Chane [1 ]
Gounden, Neelan [1 ]
Nape, Isaac [1 ]
Forbes, Andrew [1 ]
机构
[1] Univ Witwatersrand, Sch Phys, Struct Light Lab, ZA-2000 Johannesburg, South Africa
关键词
ghost imaging; quantum ghost imaging; spatial modes; structured light; LIGHT;
D O I
10.1002/qute.202400577
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In a conventional quantum imaging experiment, the image of the object is retrieved directly with single photon camera technology, or computationally with a single-pixel detector and pixelated projective masks. In all these approaches, the resolution of the image is dictated by the pixel resolution of the detection devices. In this paper, the traditional spatial basis of pixels is replaced with spatial modes, exploiting their unique features to enhance image fidelity and resolution and improve reconstruction accuracy through modal sparsity. This approach can be used even when the modes are not orthogonal, demonstrating the principle with highly efficient phase-only approximations to the modal basis. By numerical simulation and experimental analysis, the advantages of this approach are illustrated, which include faster convergence to the object, with higher signals and fidelity, which are demonstrated with an order of magnitude less masks than conventional approaches for the same fidelity in outcome. Unlike the basis of pixels, the resolution of the image is not dictated by the resolution of the detectors, opening a path to high-resolution quantum imaging of complex objects.
引用
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页数:10
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