Beam propagation effects in THz time-domain tomography

被引:0
|
作者
Stringer, Mark R. [1 ]
Wright, Paul [2 ]
Miles, Robert E. [1 ]
Ozanyan, Krikor [2 ]
机构
[1] Univ Leeds, Inst Microwaves & Photon, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Manchester, Dept Elect & Elect Engn, Manchester M13 9PL, Lancs, England
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have performed 2-dimensional tomographic measurements upon shaped phantoms constructed from material with low optical power, using a time-domain THz arrangement. While the phantom morphology can be successfully reconstructed using the time-delay data, use of the THz pulse amplitude is less reliable, demonstrating distortions that may be a consequence of beam diffraction effect. This effectively masks the true attenuation contrast of the object.
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页码:229 / +
页数:2
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