Manipulating Orbital Angular Momentum Entanglement in Three-Dimensional Spiral Nonlinear Photonic Crystals
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by
Qian Yu,
Chuan Xu,
Sixin Chen,
Pengcheng Chen,
Saiwei Nie,
Shijie Ke,
Dunzhao Wei,
Min Xiao,
Yong Zhang
Abstract
We propose and theoretically investigate two-photon orbital angular momentum (OAM) correlation through spontaneous parameter down-conversion (SPDC) processes in three-dimensional (3D) spiral nonlinear photonic crystals (NPCs). By properly designing the NPC structure, one can feasibly modulate the OAM-correlated photon pair, which provides a potential platform to realize high-dimensional entanglement for quantum information processing and quantum communications.
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