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Author:

Xu, Zhihao (Xu, Zhihao.) | Rong, Lu (Rong, Lu.) (Scholars:戎路) | Wang, Dayong (Wang, Dayong.) (Scholars:王大勇) | Li, Bin (Li, Bin.) | Zhao, Yanlin (Zhao, Yanlin.) | Zhao, Jie (Zhao, Jie.) | Wang, Yunxin (Wang, Yunxin.) (Scholars:王云新)

Indexed by:

CPCI-S EI Scopus

Abstract:

Terahertz imaging technology has been widely used in various fields. In continuous-wave terahertz imaging system, when the large size object is located at the unfocused position, Bessel beam with non-diffractive properties show its large depth of focus advantage over Gaussian beam. Bessel beam can be generated by the axicon, which has high conversion efficiency. The non-diffraction distance and the main lobe size of the Bessel beam depend on the parameters of the axicon and incident light wavelength. We analyzed that the influence on the axial two-dimensional intensity distribution of a zero-order Bessel beam by changing the axicon parameters and the incident Gaussian beam size. Experimentally, the axicon with different parameters were fabricated using different materials. Then the two-dimensional intensity distribution of the Bessel beam in the axial and transverse direction were recorded and analyzed. The experimental results is basically consistent with the theoretical ones.

Keyword:

Terahertz Axicon Bessel beam

Author Community:

  • [ 1 ] [Xu, Zhihao]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 2 ] [Rong, Lu]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Dayong]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Bin]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 5 ] [Zhao, Yanlin]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 6 ] [Zhao, Jie]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 7 ] [Wang, Yunxin]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 8 ] [Rong, Lu]Beijing Engn Res Ctr Precis Measurement Technol &, 100 Pingleyuan Rd, Beijing 100124, Peoples R China
  • [ 9 ] [Wang, Dayong]Beijing Engn Res Ctr Precis Measurement Technol &, 100 Pingleyuan Rd, Beijing 100124, Peoples R China
  • [ 10 ] [Zhao, Jie]Beijing Engn Res Ctr Precis Measurement Technol &, 100 Pingleyuan Rd, Beijing 100124, Peoples R China
  • [ 11 ] [Wang, Yunxin]Beijing Engn Res Ctr Precis Measurement Technol &, 100 Pingleyuan Rd, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 王大勇

    [Wang, Dayong]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China;;[Wang, Dayong]Beijing Engn Res Ctr Precis Measurement Technol &, 100 Pingleyuan Rd, Beijing 100124, Peoples R China

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Source :

INFRARED, MILLIMETER-WAVE, AND TERAHERTZ TECHNOLOGIES V

ISSN: 0277-786X

Year: 2018

Volume: 10826

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

Affiliated Colleges:

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