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Jin H, Xu P, Luo XW, et al. Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal. Phys Rev Lett. 2013;111(2):023603doi: 10.1103/PhysRevLett.111.023603.
Jin, H., Xu, P., Luo, X. W., Leng, H. Y., Gong, Y. X., Yu, W. J., Zhong, M. L., Zhao, G., & Zhu, S. N. (2013). Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal. Physical review letters, 111(2), 023603. https://doi.org/10.1103/PhysRevLett.111.023603
Jin, H, et al. "Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal." Physical review letters vol. 111,2 (2013): 023603. doi: https://doi.org/10.1103/PhysRevLett.111.023603
Jin H, Xu P, Luo XW, Leng HY, Gong YX, Yu WJ, Zhong ML, Zhao G, Zhu SN. Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal. Phys Rev Lett. 2013 Jul 12;111(2):023603. doi: 10.1103/PhysRevLett.111.023603. Epub 2013 Jul 12. PMID: 23889400.
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Phys Rev Lett. 2013 Jul 12;111(2):023603. doi: 10.1103/PhysRevLett.111.023603. Epub 2013 Jul 12.

Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal.

Physical review letters

H Jin, P Xu, X W Luo, H Y Leng, Y X Gong, W J Yu, M L Zhong, G Zhao, S N Zhu

Affiliations

  1. National Laboratory of Solid State Microstructures, College of Physics, and National Center of Microstructures and Quantum Manipulation, Nanjing University, Nanjing 210093, China.

PMID: 23889400 DOI: 10.1103/PhysRevLett.111.023603

Abstract

An integrated realization of photonic entangled states becomes an inevitable tendency toward integrated quantum optics. Here we report the compact engineering of steerable photonic path-entangled states from a monolithic quadratic nonlinear photonic crystal. The crystal acts as a coherent beam splitter to distribute photons into designed spatial modes, producing the heralded single-photon and appealing beamlike two-photon path entanglement. We characterize the path entanglement by implementing quantum spatial beating experiments. Such a multifunctional entangled source can be further extended to the high-dimensional fashion and multiphoton level, which paves a desirable way to engineering miniaturized quantum light sources.

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