Issue 20, 2022

Phase matching achieved by isomorphous substitution in IR nonlinear optical material Ba2SnSSi2O7 with an undiscovered [SnO4S] functional motif

Abstract

In order to enable nonlinear optical (NLO) crystals to output laser power effectively in devices, phase matching (PM) characteristics are very important. However, as a formidable challenge, the interrelationship between macroscopic phase matchability and microscopic crystal structure is still not well investigated. In this study, a PM fresnoite oxychalcogenide Ba2SnSSi2O7 was successfully designed and synthesized via isomorphous substitution of non-phase matching (NPM) parent Ba2TiOSi2O7. Moreover, Ba2SnSSi2O7 exhibits excellent comprehensive properties in IR-NLO oxychalcogenides, which is the first example that breaks through the incompatibility between a large band gap (Eg > 4.0 eV) and a strong SHG efficiency (deff > 0.5 × AgGaS2). In addition, the hetero-ligand [SnO4S] asymmetric building unit in the structure is an undiscovered bifunctional NLO-active group, which is conducive to the development of novel NLO oxychalcogenides with enhanced deff and enlarged birefringence (Δn). This study not only enriches the fresnoite-type material library but also provides a new paradigm for designing high-performance PM NLO materials.

Graphical abstract: Phase matching achieved by isomorphous substitution in IR nonlinear optical material Ba2SnSSi2O7 with an undiscovered [SnO4S] functional motif

Supplementary files

Article information

Article type
Research Article
Submitted
28 juin 2022
Accepted
27 août 2022
First published
30 août 2022

Mater. Chem. Front., 2022,6, 3054-3061

Phase matching achieved by isomorphous substitution in IR nonlinear optical material Ba2SnSSi2O7 with an undiscovered [SnO4S] functional motif

Y. Shi, Z. Ma, B. Li, X. Wu, H. Lin and Q. Zhu, Mater. Chem. Front., 2022, 6, 3054 DOI: 10.1039/D2QM00621A

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