Centini, MarcoD'Aguanno, GiuseppeSciscione, LetiziaSibilia, ConcitaBertolotti, MarioScalora, MichaelBloemer, Mark J.2020-05-202020-05-202004-09-15Centini, Marco; et al.; Second harmonic generation in one-dimensional photonic crystals: optimization procedure; Proceedings Volume 5450, Photonic Crystal Materials and Nanostructures; (2004); https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5450/0000/Second-harmonic-generation-in-one-dimensional-photonic-crystals--optimization/10.1117/12.545651.short?SSO=1https://doi.org/10.1117/12.545651http://hdl.handle.net/11603/18681Proceedings Volume 5450, Photonic Crystal Materials and Nanostructures; (2004); Event: Photonics Europe, 2004, Strasbourg, FranceWe present a new concept for efficient second harmonic generation that is based upon the interference of counter-propagating waves in multilayer structures. We show that phase matching and quasi phase matching are not always necessary conditions to provide optimized nonlinear frequency conversion efficiency.8 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