Rb7SrY2(B5O10)3: A Rare-Earth Pentaborate with Moderate Second-Harmonic Response and Interesting Phase-Matching Behavior

Yunfei Li; Fei Liang; Huimin Song; Wang Liu; Zheshuai Lin; Guochun Zhang; Yicheng Wu

doi:10.1021/acs.inorgchem.9b01561

Rb₇SrY₂(B₅O₁₀)₃: A Rare-Earth Pentaborate with Moderate Second-Harmonic Response and Interesting Phase-Matching Behavior

Inorg Chem. 2019 Jul 15;58(14):8943-8947. doi: 10.1021/acs.inorgchem.9b01561. Epub 2019 Jul 2.

Authors

Yunfei Li^{1

2

3}, Fei Liang^{1

3}, Huimin Song^{1

2

3}, Wang Liu^{1

2

3}, Zheshuai Lin¹, Guochun Zhang^{1

2}, Yicheng Wu⁴

Affiliations

¹ Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology of Chinese Academy of Sciences , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China.
² Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , P.R. China.
³ University of Chinese Academy of Sciences , Beijing 100049 , P. R. China.
⁴ Institute of Functional Crystal Materials , Tianjin University of Technology , Tianjin 300384 , P. R. China.

PMID: 31264858
DOI: 10.1021/acs.inorgchem.9b01561

Abstract

Phase-matchable (PM) capacity is an indispensable factor in evaluating the applicable prospect of a new nonlinear optical crystal. Obtaining an accurate and credible PM curve by the Kurtz-Perry method using a small single crystal is indeed crucial. Here, we reported a new borate NLO crystal Rb₇SrY₂(B₅O₁₀)₃ (I) and studied the influence of the arrangement of micro-[B₅O₁₀] groups on its birefringence. Interestingly, the synthesized polycrystalline powder and grinded single crystal display divergent PM and non-PM behavior, respectively. Combining theoretical calculations and analysis, I is demonstrated to be non-phase matchable for the second-harmonic generation (SHG) process of a 1064 nm laser.