D’Aguanno, GiuseppeAkozbek, NesetMattiucci, NadiaScalora, MichaelBloemer, Mark J.Zheltikov, Aleksei M.2020-05-212020-05-212005D’Aguanno, Giuseppe; et al.; Dispersion-free pulse propagation in a negative-index material; Optics Letters Vol. 30, Issue 15, pp. 1998-2000 (2005); https://www.osapublishing.org/ol/abstract.cfm?uri=ol-30-15-1998https://doi.org/10.1364/OL.30.001998http://hdl.handle.net/11603/18712The possibility of controlling the spectral position of the zero group-velocity dispersion point of a negative-index material can be exploited by varying the ratio between the electric and the magnetic plasma frequency to obtain dispersion-free propagation in spectral regions otherwise inaccessible using conventional positive-index materials. Our predictions are confirmed by pulse propagation simulations where all the orders of the complex dispersion of the material are taken into account.3 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Public Domain Mark 1.0This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Text