Anisotropic light emission from aligned luminophores Paul P.C. Verbunt, Ties M. de Jong, Dick K.G. de Boer, Dirk J. Broer and Michael G. Debije Eur. Phys. J. Appl. Phys., 67 1 (2014) 10201 Published online: 17 June 2014 DOI: 10.1051/epjap/2014140120