Continuous-wave Terahertz Computed Tomography Based on Bessel Beam - 文章详情页

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We　report　a　continuous-wave　terahertz　computed　tomography　using　Bessel　beam　generated　by　the　axicon.　Two-dimensional　cross-sectional　images　of　the　internal　structure　of　plastic　pipes　at　different　distances　are　reconstructed　by　using　the　filtered　back　projection　algorithm.　Compared　with　conventional　Gaussian　beam,　Bessel　beam　can　extend　the　depth　of　field　and　improve　the　fidelity　of　the　reconstruction.　©　2019　IEEE.

关键词：

Geometrical optics Bessel functions Terahertz waves Laser beams Computerized tomography Plastic pipe Gaussian beams

作者机构：

[ 1 ] [Rong, L.]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Li, B.]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Wang, D.]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Wang, D.]Beijing Engineering Research Center of Precision Measurement Technology and Instrument, Beijing; 100124, China
[ 5 ] [Wang, Y.]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Wang, Y.]Beijing Engineering Research Center of Precision Measurement Technology and Instrument, Beijing; 100124, China
[ 7 ] [Zhao, J.]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Shi, X.]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China

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