Issue 43, 2018

Surface-step-terrace tuned second-order nonlinear optical coefficients of epitaxial ferroelectric BaTiO3 films

Abstract

Ferroelectric films epitaxially grown on vicinal substrates have been widely researched in recent decades for their unprecedented performance tuned by the surface-step-terrace (SST) induced strains of substrates. Here, BaTiO3 films are epitaxially grown on miscut (001) SrTiO3 substrates with different miscut angles of 0°, 0.2°, 1°, and 2°, and the impacts of SST-induced strains on the second-order nonlinear optical coefficients are discussed by fitting the measured second harmonic generation (SHG) signals from the films. The results show that different miscut angles of the substrates can bring about different SST strain states in the BTO films, which make different contributions on the second-order nonlinear optical coefficients. These results disclose that the second-order nonlinear optical coefficients can be effectively controlled by SST induced strains, which provides a new way to tune the optical properties of functional oxide thin films.

Graphical abstract: Surface-step-terrace tuned second-order nonlinear optical coefficients of epitaxial ferroelectric BaTiO3 films

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2018
Accepted
09 Oct 2018
First published
10 Oct 2018

J. Mater. Chem. C, 2018,6, 11679-11685

Surface-step-terrace tuned second-order nonlinear optical coefficients of epitaxial ferroelectric BaTiO3 films

Y. Zhang, Q. Guo, S. Zheng, X. Zhong, G. Zhong, D. Zhang, C. Ren, C. Tan, Z. Lu, Y. Zhang, Y. Tang, J. Wang and J. Yuan, J. Mater. Chem. C, 2018, 6, 11679 DOI: 10.1039/C8TC02819B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements