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APS » Journals » Phys. Rev. A » Volume 66 » Issue 4
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Phys. Rev. A 66, 041801(R) (2002) [4 pages]

Conservation of orbital angular momentum in stimulated down-conversion

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D. P. Caetano, M. P. Almeida, and P. H. Souto Ribeiro*
Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil

J. A. O. Huguenin, B. Coutinho dos Santos, and A. Z. Khoury
Instituto de Física, Universidade Federal Fluminense, BR-24210-340 Niteroi, RJ, Brazil

Received 22 August 2001; published 23 October 2002

We report on an experiment demonstrating the conservation of the orbital angular momentum in stimulated down-conversion. It has been demonstrated that the orbital angular momentum is not transferred to the individual beams of the spontaneous down-conversion. It is also known that it is conserved when twin photons are taken individually. We observe the conservation law for an individual beam of the down-conversion through cavity-free stimulated emission.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.041801
DOI:
10.1103/PhysRevA.66.041801
PACS:
42.50.Ar, 42.25.Kb, 42.65.Ky

*Corresponding author. Email address: phsr@if.ufrj.br

 
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