Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Spectral Properties of THz-Periodic Metallic Structures

  • Kang, Chul (Advanced Photonics Research Institute, Gwangju Institute Science and Technology) ;
  • Kee, Chul-Sik (Advanced Photonics Research Institute, Gwangju Institute Science and Technology) ;
  • Sohn, Ik-Bu (Advanced Photonics Research Institute, Gwangju Institute Science and Technology) ;
  • Lee, Jong-Min (Advanced Photonics Research Institute, Gwangju Institute Science and Technology)
  • Received : 2008.08.19
  • Accepted : 2008.09.18
  • Published : 2008.09.25
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Abstract

We have investigated spectral properties of the periodic arrays of aluminum rods and holes on papers using the terahertz time-domain spectroscopy. The size of a rod(hole) is $600{\mu}m{\times}100{\mu}m$ and the spacing is $300{\mu}m$. The samples were fabricated by a femtosecond laser micromachining system. The periodic arrays of aluminum rods exhibit high reflection around 0.25 THz when the polarization of the THz pulse is parallel to the long axis of the rod, whereas the periodic arrays of holes exhibit high transmission around 0.25 THz when the polarization of the THz pulse is perpendicular to the long axis of the hole.

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References

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