Mattiucci, NadiaD’Aguanno, GiuseppeScalora, MichaelBloemer, Mark J.Akozbek, NesetHaus, J. W.2020-05-212020-05-212006Mattiucci, Nadia; et al.; Collinear terahertz generation in photonic crystal structures via difference-frequency generation; Journal of the Optical Society of America B Vol. 23, Issue 1, pp. 168-178 (2006); https://www.osapublishing.org/josab/abstract.cfm?uri=josab-23-1-168https://doi.org/10.1364/JOSAB.23.000168http://hdl.handle.net/11603/18709We have developed a three-dimensional model to study the properties of terahertz emission from a one-dimensional, 𝜒⁽²⁾-doped photonic crystal. We exploit difference-frequency generation in a collinear configuration and find an enhancement factor of up to 20 with respect to difference-frequency conversion from an equivalent bulk structure.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.Text