School of Instrumentation Science and Opto-Electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing, China 100191.
Opt Lett. 2010 Jun 15;35(12):2091-3. doi: 10.1364/OL.35.002091.
We theoretically demonstrate third-order lensless ghost diffraction by using a fully classical incoherent light source in which the light beam is detected by two detectors. The resolution and visibility of the obtained diffraction pattern are discussed. It is shown that the resolution of third-order ghost diffraction is determined by the transverse correlation length in the detection plane, while the visibility is affected by the ratio of the transverse length of the imaged object and the transverse size of the light source. Furthermore, we discuss the similarities and differences of second- and third-order lensless ghost diffraction.
我们通过使用完全非相干的光源和两个探测器，理论上演示了三阶无透镜鬼衍射。讨论了获得的衍射图样的分辨率和可见度。结果表明，三阶鬼衍射的分辨率取决于探测平面中的横向相关长度，而可见度受成像物体的横向长度与光源的横向尺寸之比的影响。此外，我们讨论了二阶和三阶无透镜鬼衍射的异同。
