Laboratory demonstration of a mid-infrared AGPM vector vortex coronagraph C. Delacroix, O. Absil, P. Forsberg, D. Mawet, V. Christiaens, M. Karlsson, A. Boccaletti, P. Baudoz, M. Kuittinen, I. Vartiainen et al. (2 more) A&A, 553 (2013) A98 Published online: 16 May 2013 DOI: 10.1051/0004-6361/201321126