›› 2010, Vol. 23 ›› Issue (3): 7-.

• 论文 • 上一篇    下一篇



  1. (1西北大学 物理学系,陕西 西安710069;2西安理工大学 应用物理系,陕西 西安710048 )
  • 出版日期:2010-03-15 发布日期:2010-05-12
  • 通讯作者: 肖健(1983-),男,硕士研究生。研究方向:太赫兹波。
  • 作者简介:肖健(1983-),男,硕士研究生。研究方向:太赫兹波。
  • 基金资助:


Investigation of Generation of Terahertz with the Photoconductor Triggered by the Femo Second Laser Pulse

Xiao Jian1,Gao Aihua1,2   

  1. (1Department of Physics,Northwest University,Xian 710069,China;
    2Department of Applied Physics,Xian University of Technology,Xian 710048,China)
  • Online:2010-03-15 Published:2010-05-12



关键词: THz波, 光电导天线, 时域有限差分法


The terahertz (THz) radiation properties of the photoconductive antenna (PCA) are studied in order to improve the THz radiation efficiency.Maxwells equations and boundary conditions are adopted to calculate the field intensity of the near or far field.Using the finitedifference timedomain electromagnetic method and c language program in the matlab software,the spatial electromagnetic field distribution radiation of photoconductive dipole antenna is calculated and displayed on the computer in a pseudocolor graph.The visualization of the electromagnetic field provides a physical basis for the intuitive design and improvement of the antenna.

Key words: terahertz wave;photoconductive antenna;FDTD


  • O4343