| 反射式太赫兹返波振荡器成像系统及其应用 |
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| 引用本文： | 葛新浩,吕默,钟华,张存林.反射式太赫兹返波振荡器成像系统及其应用[J].红外与毫米波学报,2010,29(1):15-18. |
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| 作者姓名： | 葛新浩 吕默 钟华 张存林 |
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| 作者单位： | 首都师范大学物理系,北京市太赫兹波谱与成像重点实验室,太赫兹光电子学教育部重点实验室,北京,100048 |
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| 基金项目： | 国家重点基础研究发展计划“973计划”(2007CB310408);;国家自然科学基金(10390160) |
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| 摘 要： | 实现了基于返波管源的太赫兹波反射式成像系统.这是一种新型的无损探伤成像方式.从样品表面或者基底反射回来的太赫兹波被焦热电探测器收集,最后经过计算机处理成像.频率为0.7THz的成像系统被用来对一系列样品进行无损检测,如硬币、徽章、模型飞机以及预埋了人工缺陷的工业样品.结果表明,很多工业材料相对于太赫兹波都是透明的,尤其是一些在航空航天技术中具有广泛应用价值的吸收微波的材料.
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| 关 键 词： | 无损检测 太赫兹成像 返波震荡器 反射式成像 |
| 收稿时间： | 1/5/2009 12:00:00 AM |
| 修稿时间： | 9/4/2009 12:00:00 AM |
TERAHERTZ WAVE REFLECTION IMAGING SYSTEM BASED ON BACKWARD WAVE OSCILLATOR AND ITS APPLICATION |
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| GE Xin-Hao,LV Mo,ZHONG Hua and ZHANG Cun-Lin.TERAHERTZ WAVE REFLECTION IMAGING SYSTEM BASED ON BACKWARD WAVE OSCILLATOR AND ITS APPLICATION[J].Journal of Infrared and Millimeter Waves,2010,29(1):15-18. |
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| Authors: | GE Xin-Hao LV Mo ZHONG Hua and ZHANG Cun-Lin |
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| Affiliation: | Beijing Key Laboratory for Terahertz Spectroscopy and Imaging;Key Laboratory of Terahertz Optoelectronics;Ministry of Education;Department of Physics;Capital Normal University;Beijing 100048;China |
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| Abstract: | A terahertz(THz) wave reflection imaging system based on backward wave oscillator(BWO) was presented.It is a new approach to non-destructive testing.The intensity information of the terahertz wave after being reflected from the sample surface or substrate was collected by a pyroelectric detector,and then imaged by computer.A number of samples which had potential imaging applications were tested by using 0.7 THz radiation,including coins,badges,a model air-plane and some industrial samples that contained pre... |
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| Keywords: | nondestructive testing terahertz imaging backward-wave oscillator(BWO) reflection imaging |
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