Journal article
Unexpected Near-Infrared to Visible Nonlinear Optical Properties from 2‑D Polar Metals
Abstract
Near-infrared-to-visible second harmonic generation from air-stable two-dimensional polar gallium and indium metals is described. The photonic properties of 2D metals, including the largest second-order susceptibilities reported for metals (approaching 10 nm/V), are determined by the atomic-level structure and bonding of two-to-three-atom-thick crystalline films. The bond character evolved from covalent to metallic over a few atomic layers, …
Authors
Steves MA; Wang Y; Briggs N; Zhao T; El-Sherif H; Bersch BM; Subramanian S; Dong C; Bowen T; De La Fuente Duran A
Journal
Nano Letters, Vol. 20, No. 11, pp. 8312–8318
Publisher
American Chemical Society (ACS)
Publication Date
November 11, 2020
DOI
10.1021/acs.nanolett.0c03481
ISSN
1530-6984