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Issue 28, 2020
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Helix-constructed polar rare-earth iodate fluoride as a laser nonlinear optical multifunctional material

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Abstract

The first trivalent rare-earth iodate fluoride nonlinear optical (NLO) crystal, Y(IO3)2F (YIF), was successfully designed and synthesized, featuring polarization-favorable helical chains constructed from trans-YO6F2 polyhedra and IO3 groups. It exhibited a suitable balance of a wide transparency range of 0.26–10.0 μm, high laser damage threshold (LDT) of 39.6 × AgGaS2, and moderate second harmonic generation (SHG) effect of 2 × KDP. A series of doped RE:YIF (RE = Pr, Nd, Dy, Ho, Er, Tm, and Yb) crystals were easily synthesized benefiting from the spring-shaped helix structure, which possess wide absorption and emission peaks as well as long lifetime, especially in the visible and near-infrared regions. Particularly, the remarkable fluorescence properties of Nd and Yb doped YIF crystals are comparable to and even better than those of traditional self-frequency doubling (SFD) crystals such as YAB, YCOB, and GdCOB. Thus, these RE-doped YIF crystals are promising laser SFD crystals. This work also indicated that constructing helical chains should be an effective strategy for the design of inorganic polar materials.

Graphical abstract: Helix-constructed polar rare-earth iodate fluoride as a laser nonlinear optical multifunctional material

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Supplementary files

Article information


Submitted
15 May 2020
Accepted
21 Jun 2020
First published
23 Jun 2020

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2020,11, 7396-7400
Article type
Edge Article

Helix-constructed polar rare-earth iodate fluoride as a laser nonlinear optical multifunctional material

G. Peng, Y. Yang, T. Yan, D. Zhao, B. Li, G. Zhang, Z. Lin and N. Ye, Chem. Sci., 2020, 11, 7396
DOI: 10.1039/D0SC02789H

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