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4种粗糙度铝板的2.52 THz后向散射测量

Measurement of 2.52 THz Back Scattering in Aluminium Plates with Four Kinds of Roughness

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摘要

太赫兹目标散射特性是表征目标对太赫兹波散射能力的一个重要指标。搭建了束宽约100 mm的带有屏蔽舱的2.52 THz目标散射测量系统。利用该系统分别对粗糙度Ra为1.6,3.2,6.3,12.5 μm,宽为40 mm和45 mm的铝方板进行了后向散射的测量实验。通过对数据的分析以及与理论公式的对比,验证了此系统的可行性。实验结果表明,相同尺寸不同粗糙度铝板后向散射最大值变化很小,随着粗糙度增大,后向散射从高点下降,斜率有增大趋势。

Abstract

Terahertz target scattering characteristic is a very important index to represent the target′s scattering ability of Terahertz. A system to measure target′s scattering characteristic of 2.52 THz is established. The system has a shield compartment, and the beam′s waist width is about 100 mm. With this system, a back scattering measurement experiment is conducted on square plates whose roughness Ra are respectively 1.6, 3.2, 6.3, 12.5 μm. The square plates are 40 mm and 45 mm wide. Through analyzing the experimental data and comparing them with the theoretical formula, the feasibility of this system is verified. The experimental results show that the back scattering′s maximum value of the aluminum plates with different roughnesses changes little, when the size of the aluminum plates is the same. While the roughness increases, the back scattering declines from the peak and the gradient trends greater.

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中图分类号:TN29

DOI:10.3788/lop53.111201

所属栏目:仪器,测量与计量

收稿日期:2016-07-12

修改稿日期:2016-07-27

网络出版日期:2016-10-20

作者单位    点击查看

樊长坤:哈尔滨工业大学可调谐激光技术国家级重点实验室, 黑龙江 哈尔滨 150080
李琦:哈尔滨工业大学可调谐激光技术国家级重点实验室, 黑龙江 哈尔滨 150080
周毅:哈尔滨工业大学可调谐激光技术国家级重点实验室, 黑龙江 哈尔滨 150080
赵永蓬:哈尔滨工业大学可调谐激光技术国家级重点实验室, 黑龙江 哈尔滨 150080
陈德应:哈尔滨工业大学可调谐激光技术国家级重点实验室, 黑龙江 哈尔滨 150080

联系人作者:樊长坤(hit_fanchangkun@qq.com)

备注:樊长坤(2092-),男,硕士研究生,主要从事太赫兹目标散射特性测量方面的研究。

【1】Williams R J, Gatesman A J, Goyette T M, et al. Radar cross section measurements of frequency selective terahertz retroreflectors[C]. SPIE, 2014, 9102: 91020R.

【2】Di G D A, Gatesman A J, Giles R H, et al. Backscattering of ground terrain and building materials at millimeter-wave and terahertz frequencies[C]. SPIE, 2013, 8715: 871507.

【3】Li Qi, Xue Kai, Li Huiyu, et al. Advances in research of terahertz radar cross section measurements[J]. Laser & Optoelectronics Progress, 2012, 49(6): 060001.
李琦, 薛凯, 李慧宇, 等. 太赫兹雷达散射截面测量研究进展[J]. 激光与光电子学进展, 2012, 49(6): 060001.

【4】Gente R, Jansen C, Geise R, et al. Scaled bistatic radar cross section measurements of aircraft with a fiber-coupled THz time-domain spectrometer[J]. IEEE T Thz Sci Techn, 2012, 2(4): 424-431.

【5】Mc G R W, Heville R A, Grischkowsky D R. Experimental study of the surface waves on a dielectric cylinder via terahertz impulse radar ranging[J]. IEEE T Microw Theory, 2000, 48(3): 420-422.

【6】Iwaszczuk K, Heiselberg H, Jepsen P U. Terahertz radar cross section measurements[J]. Opt Express, 2010, 20(25): 26399-26408.

【7】Goyette T M, Dickinson J C, Waldman J. A 1.56THz compact radar range for W-band imagery of scale-model tactical targets[C]. SPIE, 2000, 4053: 615-622.

【8】Jagannathan A, Gatesman A J, Horgan T, et al. Effect of periodic roughness and surface defects on the terahertz scattering behavior of cylindrical objects[C]. SPIE, 2010, 7671: 76710E.

【9】Wu C, Gatesman A J, DeRoeck L, et al. Terahertz backscattering behavior of various absorbing materials[C]. SPIE, 2009, 7311: 73110M.

【10】Huang Xin, Wu Yajun, Wang Xiaobing, et al. Terahertz radar cross section measurement technique[J]. Space Electronic Technology, 2013, 4: 104-109.
黄欣, 武亚君, 王晓冰, 等. 太赫兹目标雷达散射截面测量技术[J]. 空间电子技术, 2013, 4: 104-109.

【11】Liang Dachuan, Wei Minggui, Gu Jianqiang, et al. Broad-band time domain terahertz radar cross-section research in scale models[J]. Acta Phys Sin, 2014, 63(21): 214102.
梁达川, 魏明贵, 谷建强, 等. 缩比模型的宽频时域太赫兹雷达散射截面(RCS)研究[J]. 物理学报, 2014, 63(21): 214102.

【12】Yang Yang, Yao Jianquan, Wang Li, et al. Experimental study on the radar cross section of low-frequency terahertz standard target[J]. Infrared and Laser Engineering, 2015, 44(3): 985-989.
杨洋, 姚建铨, 王力, 等. 低频太赫兹标准目标雷达散射截面的实验研究[J]. 红外与激光工程, 2015, 44(3): 985-989.

【13】Jiang Yuesong, Zhang Zhiguo, Hua Houqiang. RCS simulation of targets in THz band based on fast physical optics algorithm[J]. Acta Optica Sinica, 2014, 34(12): 1211001.
江月松, 张志国, 华厚强. 基于快速物理光学法的太赫兹目标RCS计算[J]. 光学学报, 2014, 34(12): 1211001.

【14】Li Qi, Yang Yongfa, Zhao Yongpeng, et al. Measurement investigation of continuous wave terahertz back scattering characteristics in three kinds of background materials[J]. Laser & Optoelectronics Progress, 2015, 52(1): 011201.
李琦, 杨永发, 赵永蓬, 等. 三种背景材料的连续太赫兹后向散射特性测量研究[J]. 激光与光电子学进展, 2015, 52(1): 011201.

引用该论文

Fan Changkun,Li Qi,Zhou Yi,Zhao Yongpeng,Chen Deying. Measurement of 2.52 THz Back Scattering in Aluminium Plates with Four Kinds of Roughness[J]. Laser & Optoelectronics Progress, 2016, 53(11): 111201

樊长坤,李琦,周毅,赵永蓬,陈德应. 4种粗糙度铝板的2.52 THz后向散射测量[J]. 激光与光电子学进展, 2016, 53(11): 111201

被引情况

【1】樊长坤,李琦,赵永蓬,陈德应. 矩形铝板2.52 THz后向散射强度测量研究. 中国激光, 2017, 44(12): 1214001--1

【2】樊长坤,李琦,赵永蓬,陈德应. 不同粗糙度抛物面的2.52 THz后向散射测量. 红外与激光工程, 2017, 46(11): 1125005--1

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