Wide-band optical field concentrator for low-index core propagationD. de Ceglia, M. De Sario, A. D’Orazio, V. Petruzzelli, M.A. Vincenti, F. Prudenzano and M. ScaloraJ. Eur. Opt. Soc.-Rapid Publ., 1 (2006) 06023DOI: https://doi.org/10.2971/jeos.2006.06023
