Terahertz Phase Image Reconstruction Using an Iterative Algorithm

被引:0
|
作者
Wang, Yingxin [1 ,2 ,3 ]
Chen, Zhiqiang [2 ,3 ]
Zhao, Ziran [2 ,3 ]
Zhang, Li [2 ,3 ]
Kang, Kejun [2 ,3 ]
Deng, Jingkang [1 ]
机构
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Minist Educ, Key Lab Particle & Radiat Imaging, Beijing, Peoples R China
[3] Tsinghua Univ, Dept Engn Phys, Beijing, Peoples R China
关键词
RETRIEVAL;
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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 present a terahertz phase contrast imaging technique based on the iterative phase retrieval method which can be realized readily on the conventional terahertz intensity measurement system. The complex wave field of terahertz radiation in the object plane (i.e., the terahertz phase image) is reconstructed from its measured Fourier transform magnitude using the Gerchberg-Saxton-Fienup algorithm with a known object support constraint. Preliminary experimental tests for a nearly transparent sample are performed to demonstrate the feasibility of this new imaging concept.
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页数:2
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