The progress on terahertz imaging at Capital Normal University in Beijing is presented. Our works on Terahertz Imaging include the active and passive imaging. For the active terahertz imaging, the pulse and continue wave terahertz imaging are studied, respectively. The active terahertz pulse imaging is based on the terahertz time-domain spectroscopy (THz-TDS). A practical focus-plane imaging system is built up based on the THz-TDS with the probe-beam-expanded electro-optical sampling and an infrared CCD imaging. The active terahertz continuous wave imaging is based on a CO2-laser-pumped terahertz coherent source and an uncooled bolometer array of terahertz camera. The active terahertz polarization imaging and wave front imaging is developed. For the passive terahertz imaging, the low frequency of radiometers are used to detect the point-to-point beam-scanned terahertz signal by the optical focusing and scanning system so that the passive THz imaging is realized for the security inspection of human body. The related components and image processing methods are studied and used for the improvement of imaging speed and resolution. The research on THz imaging technology at Capital Normal University is opening up a potential application in the field of non-destructive testing and security inspection for the terahertz technology.
| Published in | International Journal of Astrophysics and Space Science (Volume 5, Issue 5) |
| DOI | 10.11648/j.ijass.20170505.12 |
| Page(s) | 79-84 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Terahertz, Active, Passive, Imaging, Non-destructive Testing, Security Inspection
| [1] | Lee Yun-Shik. “Principles of terahertz science and technology”. NY: Springer, 2008. |
| [2] | Van der Valk N. C. J., van der Marel W. A. M., Planken P., “Terahertz polarization imaging,” Opt. Lett., 30 (20), 2802-2804 (2005). |
| [3] | Zhang L. L., Zhong H., Deng C. et al, “Terahertz Polarization Imaging with Birefringent Materials,” Opt. Comm., 283 (24), 4993-4995 (2010). |
| [4] | Wang X., Cui Y., Sun W. et al, “Terahertz polarization real-time imaging based on balanced electro-optic detection,” J. Opt. Soc. Am. A, 27 (11), 2387-2393 (2010). |
| [5] | Zhang L. L., Zhong H., Deng C. et al, “THz wave polarization-controlled spectroscopic imaging for anisotropic materials,” Opt. Comm., 284 (19), 4356-4359 (2011). |
| [6] | Katletz Stefan, Pfleger Michael, Pühringer Harald, “Polarization sensitive terahertz imaging: detection of birefringence and optical axis,” Opt. Express, 20 (21), 23025-23035 (2012). |
| [7] | Doradla P., Alavi K., Joseph C., and Giles R., “Detection of colon cancer by continuous-wave terahertz polarization imaging technique,” J. Biom. Opt., 18 (9), 090504-3 (2013). |
| [8] | Yao Rui, Ding Shaohui, Li Qi, and Wang Qi, “Improvement of 2. 52 THz Array Transmission Imaging System and Resolution Analysis,” Chinese Journal of Lasers, 38 (1), 0111001-6 (2011). |
| [9] | Luis Femando Rojas-Ochoa, David Lacoste et al, “Depolarization of backscattered linearly polarized light,” J. Opt. Soc. Am. A., 21 (9), 1799-1804 (2004). |
| [10] | Preda M., Scarlat E. I., Preda L., “Depolarization analysis of a Laser beam scattered by a dusty plasma,” Proc. SPIE 5581, 509-516 (2004). |
| [11] | Fei Liu, Xiaopeng Shao, Pingli Han, “A Novel IR Polarization Imaging System Designed by a Four-Camera Array,” Proc. Of SPIE, 9124, 912419-6 (2014). |
| [12] | Xu Canjun, Zhao Jinsong, Cai Yi et al, “Several schemes of infrared polarization imaging technology,” Infrared Technology, 31 (5), 262-266 (2009). |
| [13] | Hartwick T. S., Hodges D. T., Barker D. H., and Foote F. B., “Far infrared imagery,” Appl. Opt. 15 (8), 1919-1922 (1976). |
| [14] | Rui Yao, Qi Li, Qi Wang, “1.63-THz Transmission Imaging Experiment by Use of a Pyroelectric Camera Array,” Proc. Of SPIE, 7277, 72770D (2009). |
| [15] | Ying Liu, Yanchun Shen, Guozhong Zhao, “Terahertz polarization imaging based on the continuous wave terahertz radiations”, Proc. of SPIE, 9622, 962209 (2015). |
| [16] | Xinke Wang, Ye Cui, Dan Hu, Wenfeng Sun, Jiasheng Ye, and Yan Zhang, “Terahertz quasi-near-field real-time imaging”, Optics Communications, 282 4683–4687 (2009). |
| [17] | Xinke Wang, Ye Cui, Wenfeng Sun, Jiasheng Ye and Yan Zhang, “Terahertz polarization real-time imaging based on balanced electro-optic detection”, J. Opt. Soc. Am. A, 27 2387–2393 (2010). |
| [18] | Xinke Wang, Ye Cui, Wenfeng Sun, Jiasheng Ye and Yan Zhang, “Terahertz real-time imaging with balanced electro-optic detection”, Optics Communications, 283 4626–4632 (2010). |
| [19] | Zhenwei Xie, Xinke Wang, Jiasheng Ye, Shengfei Feng, Wenfeng Sun, Tahsin Akalin, and Yan Zhang, "Spatial terahertz modulator", Scientific Reports, 3 3347 (2013). |
| [20] | Guozhong Zhao, Yanchun Shen, Jia Wang, and Jiayi Yu, New Progress of Active and Passive Terahertz Imaging, Proc. of SPIE, 10030, 100300Q (2016). |
| [21] | Liangliang Zhang, Nick Karpowicz, Cunlin Zhang, Yuejin Zhao and X.-C. Zhang, “Real-time nondestructive imaging with terahertz waves”, Optics Communications 281, 1473 (2008). |
| [22] | Liangliang Zhang, Hua Zhong, Chao Deng, Cunlin Zhang and Yuejin Zhao, “Terahertz wave polarization analyzer using birefringent materials”, Optics Express 17, 20266 (2009). |
| [23] | Liangliang Zhang, Hua Zhong, Chao Deng, Cunlin Zhang and Yuejin Zhao, “Characterization of birefringent material using polarization-controlled spectroscopy”, Optics Express 18, 20491 (2010). |
| [24] | Liangliang Zhang, Yan Zhang, Cunlin Zhang, Yuejin Zhao and Xiaohua Liu, “Terahertz multiwavelength phase imaging without 2π ambiguity”, Optics Letters 31, 3668 (2006). |
| [25] | Liangliang Zhang, Hua Zhong, Yan Zhang, Nick karpowizc, Cunlin Zhang, Yuejin Zhao and X.-C. Zhang, “Terahertz wave focal-plane multiwavelength phase imaging”, Journal of the Optical Society of America A 25, 1187 (2009). |
| [26] | Aleksandar Ðuric, Andreas Magun, Axel Murk, Christian Mätzler, and Niklaus Kämpfer, The Fully Polarimetric Imaging Radiometer SPIRA at 91 GHz, IEEE Transactions on Geoscience and remote sensing, 46 (8), 2323-2336 (2008). |
| [27] | Appleby R, Wallace H, Standoff detection of weapons and contrab and in 100 GHz to 1 THz region, IEEE Transactions on Antenna and Propogation, 55, 2944-2956 (2007). |
| [28] | Toshihiko K, Hiroki S, Hideaki M, Koichi M, Mitsunori N, Hiroshi S, and Kraisorn T, “A 140-GHz Quad-Receivers IC and Sub-Assembly for Compact Passive Imaging Sensors”, Microwave Symposium Digest, 1-3 (2011). |
| [29] | Stanko S, Wirtz S, “Millimeter wave imaging for concealed weapon detection and surveillance at up to 220 GHz”, Proc. Of SPIE, 6948, 69480N (2008). |
| [30] | Gropp C, Kulesa G, Lichtenberger A, Weinreb S, A progress update on SuperCam, “A 345 GHz 64 pixel heterodyne imaging spectrometer”, in Proceedings of 22th intemational Symposium on Space Terahertz Technology, Tucson, 2011, p15. |
| [31] | Li Tian, Yanchun Shen, Weiqi Jin, Guozhong Zhao, and Yi Cai, “Processing and fusion of passively acquired, millimeter and terahertz images of the human body”, Opt. Eng. 56 (12), 111-222 (2017). |
APA Style
Guozhong Zhao, Jiayi Yu, Yashang Li, Jia Wang. (2017). Terahertz Imaging Progress at Capital Normal University. International Journal of Astrophysics and Space Science, 5(5), 79-84. https://doi.org/10.11648/j.ijass.20170505.12
ACS Style
Guozhong Zhao; Jiayi Yu; Yashang Li; Jia Wang. Terahertz Imaging Progress at Capital Normal University. Int. J. Astrophys. Space Sci. 2017, 5(5), 79-84. doi: 10.11648/j.ijass.20170505.12
AMA Style
Guozhong Zhao, Jiayi Yu, Yashang Li, Jia Wang. Terahertz Imaging Progress at Capital Normal University. Int J Astrophys Space Sci. 2017;5(5):79-84. doi: 10.11648/j.ijass.20170505.12
Share This Article
Twitter
Linked In
Facebook
Copy
Download@article{10.11648/j.ijass.20170505.12,
author = {Guozhong Zhao and Jiayi Yu and Yashang Li and Jia Wang},
title = {Terahertz Imaging Progress at Capital Normal University},
journal = {International Journal of Astrophysics and Space Science},
volume = {5},
number = {5},
pages = {79-84},
doi = {10.11648/j.ijass.20170505.12},
url = {https://doi.org/10.11648/j.ijass.20170505.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijass.20170505.12},
abstract = {The progress on terahertz imaging at Capital Normal University in Beijing is presented. Our works on Terahertz Imaging include the active and passive imaging. For the active terahertz imaging, the pulse and continue wave terahertz imaging are studied, respectively. The active terahertz pulse imaging is based on the terahertz time-domain spectroscopy (THz-TDS). A practical focus-plane imaging system is built up based on the THz-TDS with the probe-beam-expanded electro-optical sampling and an infrared CCD imaging. The active terahertz continuous wave imaging is based on a CO2-laser-pumped terahertz coherent source and an uncooled bolometer array of terahertz camera. The active terahertz polarization imaging and wave front imaging is developed. For the passive terahertz imaging, the low frequency of radiometers are used to detect the point-to-point beam-scanned terahertz signal by the optical focusing and scanning system so that the passive THz imaging is realized for the security inspection of human body. The related components and image processing methods are studied and used for the improvement of imaging speed and resolution. The research on THz imaging technology at Capital Normal University is opening up a potential application in the field of non-destructive testing and security inspection for the terahertz technology.},
year = {2017}
}
TY - JOUR T1 - Terahertz Imaging Progress at Capital Normal University AU - Guozhong Zhao AU - Jiayi Yu AU - Yashang Li AU - Jia Wang Y1 - 2017/12/01 PY - 2017 N1 - https://doi.org/10.11648/j.ijass.20170505.12 DO - 10.11648/j.ijass.20170505.12 T2 - International Journal of Astrophysics and Space Science JF - International Journal of Astrophysics and Space Science JO - International Journal of Astrophysics and Space Science SP - 79 EP - 84 PB - Science Publishing Group SN - 2376-7022 UR - https://doi.org/10.11648/j.ijass.20170505.12 AB - The progress on terahertz imaging at Capital Normal University in Beijing is presented. Our works on Terahertz Imaging include the active and passive imaging. For the active terahertz imaging, the pulse and continue wave terahertz imaging are studied, respectively. The active terahertz pulse imaging is based on the terahertz time-domain spectroscopy (THz-TDS). A practical focus-plane imaging system is built up based on the THz-TDS with the probe-beam-expanded electro-optical sampling and an infrared CCD imaging. The active terahertz continuous wave imaging is based on a CO2-laser-pumped terahertz coherent source and an uncooled bolometer array of terahertz camera. The active terahertz polarization imaging and wave front imaging is developed. For the passive terahertz imaging, the low frequency of radiometers are used to detect the point-to-point beam-scanned terahertz signal by the optical focusing and scanning system so that the passive THz imaging is realized for the security inspection of human body. The related components and image processing methods are studied and used for the improvement of imaging speed and resolution. The research on THz imaging technology at Capital Normal University is opening up a potential application in the field of non-destructive testing and security inspection for the terahertz technology. VL - 5 IS - 5 ER -
Email: