自发参量下转换中光子的空间形状

EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI:10.1109/EQEC.2005.1567492

G. Molina-Terriza, S. Minardi, Y. Deyanova, C. I. Osorio, M. Hendrych, J. Torres

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引用次数: 0

摘要

本文从理论和实验两方面证明了用非共线几何或具有坡印亭矢量的近共线几何产生的纠缠光子对轨道角动量进行局域近轴测量，一般不符合已知的泵浦光、信号光和惰模函数的螺旋指数的选择规则。还讨论了适用此选择规则的条件。

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The spatial shape of photons in spontaneous parametric downconversion

This paper shows theoretically and experimentally that locally, paraxial measurements of the orbital angular momentum (OAM) conducted with entangled photons generated in noncollinear geometries, or nearly collinear geometries with Poynting vector walk off, they do not comply, in general, with the known selection rules for the spiral index of the pump, signal and idler mode functions. Conditions under which this selection rule can apply are also discussed.

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EQEC '05. European Quantum Electronics Conference, 2005.

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