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人工晶体学报 ›› 2022, Vol. 51 ›› Issue (11): 1845-1850.

• 研究论文 • 上一篇    下一篇

双温区热扩散掺杂Fe2+∶ZnSe激光晶体的制备及激光输出性能

夏士兴1,2, 周龙1,2, 许聪1,2, 魏磊3, 丁宇4, 张丰发1,2   

  1. 1.黑龙江工程学院,哈尔滨 150001;
    2.黑龙江省光电子及激光技术重点实验室,哈尔滨 150001;
    3.固体激光技术重点实验室,北京 100015;
    4.光电信息控制和安全技术重点实验室,天津 300308
  • 收稿日期:2022-06-08 出版日期:2022-11-15 发布日期:2022-12-07
  • 通讯作者: 张丰发,博士,高级工程师。E-mail:crystalbj2012@126.com
  • 作者简介:夏士兴(1972—),男,黑龙江省人,博士,教授。E-mail:xiashx2013@163.com
  • 基金资助:
    固体激光技术重点实验室开放基金(2021003H);光电信息控制和安全技术重点实验室开放基金(6142107200312)

Preparation and Laser Output Properties of Fe2+∶ZnSe Laser Crystals by Double Temperature Zone Thermal Diffusion Doping

XIA Shixing1,2, ZHOU Long1,2, XU Cong1,2, WEI Lei3, DING Yu4, ZHANG Fengfa1,2   

  1. 1. Heilongjiang Institute of Technology, Harbin 150001, China;
    2. Heilongjiang Provincial Key Laboratory of Optoelectronics and Laser Technology, Harbin 150001, China;
    3. Science and Technology on Solid-State Laser Laboratory, Beijing 100015, China;
    4. Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China
  • Received:2022-06-08 Online:2022-11-15 Published:2022-12-07

摘要: 本文以CVD ZnSe晶片为基质材料,以FeSe粉末为掺杂物,采用双温区热扩散掺杂技术获得了尺寸为Ø22 mm×4 mm的Fe2+∶ZnSe激光晶体。通过二次离子质谱(SIMS)测试该晶体样品表面铁离子浓度为3.43×1018 cm-3,并通过X射线光电子能谱(XPS)分析了晶体样品中铁元素的离子价态。采用UV/Vis/NIR分光光度计和傅里叶红外光谱仪测试了Fe2+∶ZnSe激光晶体的透过谱图。测试结果显示,在3.0 μm处出现了明显的Fe2+吸收峰,峰值透过率为5.5%。以波长为2.93 μm的Cr, Er∶YAG激光器为泵浦源,温度77 K时抽运尺寸10 mm×10 mm×4 mm的 Fe2+∶ZnSe晶体,获得了能量为191 mJ、中心波长4.04 μm的中红外激光输出,光光转换效率13.84%。

关键词: Fe2+∶ZnSe激光晶体, 热扩散掺杂, 中红外, 透过率, 激光输出, 光光转换效率

Abstract: In this paper, Fe2+∶ZnSe laser crystal with a size of Ø22 mm×4 mm was obtained by double temperature zone thermal diffusion doping method using CVD ZnSe wafer as the host material and FeSe powder as the dopant. SIMS show that iron ion concentration on the surface of the crystal sample is 3.43×1018 cm-3, and the valence state of iron in the crystal sample was analyzed by XPS. The transmission spectra of Fe2+∶ZnSe laser crystals were tested by UV/Vis/NIR spectrophotometer and Fourier transform infrared spectrometer, presenting that there is an obvious Fe2+ absorption peak at 3.0 μm with the peak transmittance of 5.5%. Fe2+∶ZnSe crystal with a size of 10 mm×10 mm×4 mm was pumped by Cr,Er∶YAG laser with a wavelength of 2.93 μm at 77 K, obtaining a mid-infrared laser output of 191 mJ and a center wavelength of 4.04 μm with the light-to-light conversion efficiency of 13.84%.

Key words: Fe2+∶ZnSe laser crystal, thermal diffusion doping, mid-infrared, transmittance, laser output, light-to-light conversion efficiency

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