Phys. Rev. A 66, 041801 (2002) [4 pages]Conservation of orbital angular momentum in stimulated down-conversion |
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/abstract/PRA/v66/e041801
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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