Highly power vortex generation with volume phase holograms and non-linear experiments in gases
I. J. Sola, V. Collados, L. Plaja, C. Méndez, J. San Román, C. Ruiz, I. Arias, A. Villamarín, J. Atencia, M. Quintanilla and L. Roso
Appl. Phys. B. 91, 115 (2008)