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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (6): 909-911.DOI: 10.16553/j.cnki.issn1000-985x.2025.6001

• 研究快报 •    下一篇

ϕ60 mm大尺寸红外非线性BaGa4Se7晶体与器件制备

王振友1(), 毛长宇1, 陈伟豪1,2, 徐俊杰1, 余学舟1, 吴海信1()   

  1. 1.中国科学院合肥物质科学研究院,安徽光学精密机械研究所,安徽省光子器件与材料重点实验室,合肥 230031
    2.中国科学技术大学,合肥 230026
  • 收稿日期:2025-05-20 出版日期:2025-06-20 发布日期:2025-06-23
  • 通信作者: 吴海信,博士,研究员。E-mail:hxwu@aiofm.ac.cn
  • 作者简介:王振友(1983—),男,安徽省人,博士,副研究员。E-mail:wzy@aiofm.ac.cn
  • 基金资助:
    国家重点研发计划(2021YFB3601503);国防科工局(JPPT-145-GH-2-024);国家自然科学基金(52472016)

Fabrication of ϕ60 mm Large-Size Infrared Nonlinear BaGa4Se7 Crystals and Devices

WANG Zhenyou1(), MAO Changyu1, CHEN Weihao1,2, XU Junjie1, YU Xuezhou1, WU Haixin1()   

  1. 1.Anhui Provincial Key Laboratory of Photonic Devices and Material,Anhui Institute of Optics and Fine Mechanics,Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230031,China
    2.University of Science and Technology of China,Hefei 230026,China
  • Received:2025-05-20 Online:2025-06-20 Published:2025-06-23

摘要: 硒镓钡(BaGa4Se7, BGSe)晶体是一种综合性能优异的新型红外非线性光学晶体。制备大尺寸、高品质BGSe晶体是目前研究的主要目标。本实验室采用双温区合成炉单次实现500 g以上高纯BGSe多晶原料合成;采用改进的布里奇曼法生长出ϕ60 mm BGSe晶体棒;通过定向、切割和抛光等加工,制备出10 mm×10 mm×50 mm以上BGSe激光频率转换器件。制备的晶体与器件尺寸均为目前报道的最大值,可为中长波红外激光输出研究提供晶体及器件支撑。

关键词: BaGa4Se7单晶; 双温区合成; 改进的布里奇曼法; 激光频率转换器件; 中长波红外

Abstract: Barium gallium selenide (BaGa4Se7, BGSe) crystal is a novel infrared nonlinear optical material with excellent comprehensive properties. The current research priority lies in the preparation of large-size, high-quality BGSe crystals. The synthesis of high-purity BGSe polycrystalline raw materials over 500 g was achieved in a single batch using a two-temperature zone synthesis furnace. Subsequently, BGSe crystal boules with a diameter of ϕ60 mm were successfully grown via an modified Bridgman method. Through orientation, cutting, and polishing processes, laser frequency conversion devices measuring over 10 mm×10 mm×50 mm were fabricated. The prepared crystals and devices represent the largest dimensions reported to date, providing critical material and component support for mid- to long-wave infrared laser output.

Key words: BaGa4Se7 single crystal; two-temperature zone synthesis; modified Bridgman method; laser frequency conversion device; mid- to long-wave infrared

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