Twin photons with angular-momentum entanglement: Phase matching

被引：28
作者：
Barbosa, GA
Arnaut, HH
机构：
[1] Northwestern Univ, Ctr Photon Commun & Comp, Dept Elect & Comp Engn, Evanston, IL 60208 USA
[2] Univ Fed Minas Gerais, Dept Fis, BR-30161970 Belo Horizonte, MG, Brazil
来源：
PHYSICAL REVIEW A | 2002年 / 65卷 / 05期
关键词：
D O I：
10.1103/PhysRevA.65.053801
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A recent work [H. H. Arnaut and G. A. Barbosa, Phys. Rev. Lett. 85, 286 (2000)] has shown eigenstates describing pairs of photons from spontaneous parametric down-conversion, which are eigenstates of orbital, intrinsic, and total momentum. Experimental demonstration of transfer of angular momentum to parametric down-converted photons has also been achieved [A. Mair, A. Vaziri, G. Weihs, and A. Zeilinger, Nature 412, 313 (2001)]. This work shows conditions for phase matching and examples are given for a Laguerre-mode pump beam. Polar and azimuthal angles are connected by phase matching giving a peculiar divergence pattern for the down-converted light. Full entanglement of polarization and angular-momentum states of photons is discussed.
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收藏
页码：538011 / 538017
页数：7
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