Novel Pentagram THz Hollow Core Anti-resonant Fiber Using a 3D Printer

  • Shuai YangEmail author
  • Xinzhi Sheng
  • Guozhong ZhaoEmail author
  • Ying Wang
  • Yang Yu


A novel pentagram THz hollow core anti-resonant fiber (HC-ARF) is proposed and fabricated by a 3D printer in this paper. By utilizing the advantage of 3D print technology, a novel structure of one ring triangular air holes is introduced in the cladding and thus a pentagram hollow core is formed, which breaks through the limitation of the material absorption and effectively lowers the propagation loss of THz wave. Numerical results show that the loss as low as 0.02 cm−1 can be obtained for the proposed fiber within the THz frequency range from 0.5 to 2 THz. The fiber samples with different length of 10 cm and 15 cm are fabricated and measured experimentally. Experimental results demonstrate that the minimum loss of 0.025 cm−1 is obtained at 1.94 THz. Furthermore, the proposed fiber also has the advantage of excellent resistance to structural deformation.


Hollow core anti-resonant fiber Terahertz Pentagram core Fiber design and fabrication 


Funding information

This work was financially supported by the National Natural Science Foundation of China (Grant No. 61575016).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of ScienceBeijing Jiaotong UniversityBeijingChina
  2. 2.Department of Physics, Capital Normal University, Key Lab of THz OptoelectronicsMinistry of EducationBeijingChina

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