期刊
OPTICS EXPRESS
卷 21, 期 2, 页码 2423-2433出版社
Optica Publishing Group
DOI: 10.1364/OE.21.002423
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资金
- BRIDGE Fellowship Program, Japan Society for the Promotion of Science, Japan
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [21650111, 23656265]
- Renovation Center of Instruments for Science Education and Technology at Osaka University, Japan
- Grants-in-Aid for Scientific Research [21650111, 23860029, 23656265] Funding Source: KAKEN
We demonstrated fast three-dimensional transmission terahertz computed tomography by using real-time line projection of intense terahertz beam generated by optical rectification in lithium niobate crystal. After emphasizing the advantage of intense terahertz pulse generation for two-dimensional spatio-temporal terahertz imaging, peak-to-peak amplitudes of pulsed terahertz electric field have been used to obtain a series of projection images at different rotation angles. Then a standard reconstruction algorithm has been employed to perform final three-dimensional reconstruction. Test samples including a medicine capsule have been investigated with a total acquisition time to only 6 minutes. (C) 2013 Optical Society of America
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