上海大学学报(自然科学版) ›› 2014, Vol. 20 ›› Issue (6): 778-783.doi: 10.3969/j.issn.1007-2861.2013.07.026

• 数理化科学 • 上一篇    下一篇

钡铁氧体的太赫兹时域光谱

岳中岳, 金钻明, 李高芳, 马国宏   

  1. 上海大学理学院, 200444
  • 收稿日期:2013-06-18 出版日期:2014-12-23 发布日期:2014-12-23
  • 通讯作者: 马国宏(1969—), 男, 教授, 博士生导师, 研究方向为光与物质相互作用. E-mail: ghma@staff.shu.edu.cn E-mail:ghma@staff.shu.edu.cn
  • 作者简介:马国宏(1969—), 男, 教授, 博士生导师, 研究方向为光与物质相互作用. E-mail: ghma@staff.shu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(11174195); 高等学校博士点专项科研基金资助项目(20123108110003)

Terahertz Time-Domain Spectroscopy of Barium Ferrites

 YUE  Zhong-Yue, JIN  Zuan-Ming, LI  Gao-Fang, MA  Guo-Hong   

  1. College of Sciences, Shanghai University, Shanghai 200444, China
  • Received:2013-06-18 Online:2014-12-23 Published:2014-12-23

摘要: 利用溶胶-凝胶自蔓延燃烧法制备了钡铁氧体和Al 掺杂钡铁氧体样品, 并利用太赫兹时域光谱(terahertz time-domain spectroscopy, THz-TDS)对样品进行了测试. 结果表明, 样品吸收谱在 0~1.2 THz 频段内随着频率的增大而增大, 钡铁氧体的折射率随频率的增大而减小; Al 掺杂的钡铁氧体样品的折射率随频率的增大而增大, 且Al 的掺杂导致钡铁氧体THz波段的折射率减小.

关键词: 钡铁氧体, 铝掺杂, 太赫兹时域光谱技术

Abstract: Al-doped and barium ferrite powders were synthesized using the sol-gel autocombustion method. The optical property and spectroscopy of Al-doped and barium ferrite were studied based on terahertz time-domain spectroscopy (THz-TDS). The power absorption and refractive index of the Al-doped and barium ferrite were measured. The result shows that Al-doped decreases the refractive indices of barium ferrites, while the refractive indices of barium ferrites samples decreases with increasing frequency, and Al-doped leads to decrease of the refractive indices.

Key words: Al-doped, barium ferrite, terahertz time-domain spectroscopy (THz-TDS)

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