1.
Phys Rev Lett
; 105(5): 053904, 2010 Jul 30.
Artículo
en Inglés
| MEDLINE
| ID: mdl-20867921
RESUMEN
We show that the orbital angular momentum can be used to unveil lattice properties hidden in diffraction patterns of a simple triangular aperture. Depending on the orbital angular momentum of the incident beam, the far field diffraction pattern reveals a truncated optical lattice associated with the illuminated aperture. This effect can be used to measure the topological charge of light beams.