| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High-Quality Continuous-Wave Imaging with a 2.53THz Optical Pumped Terahertz Laser and a Pyroelectric Detector |
| BING Pi-Bin1,2**, YAO Jian-Quan1,2, XU De-Gang1,2, XU Xiao-Yan1,2, LI Zhong-Yang1,2
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1The Institute of Laser and Optoelectronics, College of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072
2Key Laboratory of Optoelectronics Information and Technical Science (Ministry of Education), Tianjin University, Tianjin 300072
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| Cite this article: |
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BING Pi-Bin, YAO Jian-Quan, XU De-Gang et al 2010 Chin. Phys. Lett. 27 124209 |
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Abstract A cw terahertz (THz) transmission imaging system is demonstrated and a high-quality THz image can be obtained using a pyroelectric detector. The factors that affect the imaging quality, such as the THz wavelength, spot size on the sample surface, step length of the motor, and frequency of the chopper, are theoretically and experimentally investigated. The experimental results show that the maximum resolution of the THz image can reach 0.4 mm with the THz wavelength of 118.8 μm, the spot size of 1.8 mm and the step length of 0.25 mm.
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| Keywords:
42.30.Va
42.60.Pk
42.62.Cf
42.79.Ls
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Received: 02 August 2010
Published: 23 November 2010
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| PACS: |
42.30.Va
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(Image forming and processing)
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42.60.Pk
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(Continuous operation)
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42.62.Cf
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(Industrial applications)
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42.79.Ls
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(Scanners, image intensifiers, and image converters)
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