Second‐Harmonic Generation from ZnO/Al2O3 Nanolaminate Optical Metamaterials Grown by Atomic‐Layer Deposition

Abstract

Nanolaminates composed of alternating layers of ZnO and Al2O3 are grown by conformal atomic-layer deposition. Their structural and nonlinear optical properties are correlated. Optimized nano­laminates exhibit an effective bulk second-order nonlinear optical susceptibility that is independent of the substrate and that is five times larger than that of potassium dihydrogen phosphate. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.