Scalora, MichaelD’Aguanno, GiuseppeBloemer, MarkCentini, Marcode Ceglia, DomenicoMattiucci, NadiaKivshar, Yuri S.2020-05-222020-05-222006Scalora, Michael; et al.; Dynamics of short pulses and phase matched second harmonic generation in negative index materials; Optics Express Vol. 14, Issue 11, pp. 4746-4756 (2006); https://www.osapublishing.org/oe/abstract.cfm?uri=oe-14-11-4746https://doi.org/10.1364/OE.14.004746http://hdl.handle.net/11603/18717We study pulsed second harmonic generation in metamaterials under conditions of significant absorption. Tuning the pump in the negative index range, a second harmonic signal is generated in the positive index region, such that the respective indices of refraction have the same magnitudes but opposite signs. This insures that a forward-propagating pump is exactly phase matched to the backward-propagating second harmonic signal. Using peak intensities of ~500 MW/cm², assuming χ⁽²⁾~80pm/V, we predict conversion efficiencies of 12% and 0.2% for attenuation lengths of 50 and 5µm, respectively.11 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.http://creativecommons.org/publicdomain/mark/1.0/Text