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三种背景材料的连续太赫兹后向散射特性测量研究

Measurement Investigation of Continuous Wave Terahertz Back Scattering Characteristics in Three Kinds of Background Materials

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摘要

准平面波辐射下的背景材料太赫兹后向散射特性的测量方法对测量结果影响很大。为减小连续激光器输出功率波动对测量结果的影响,在每次测量泡沫塑料板时,均先测量墙的后向散射。同时,为了消除墙对测量结果的影响,以最大后向散射为基准,给出不同泡沫塑料板及同种背景材料转动不同方位角的相对后向散射强度。实验结果显示,三种泡沫塑料板相对墙的散射测量误差明显降低,从而提高了后续的相对后向散射强度测量的准确性。

Abstract

The methods of measuring the terahertz backward scattering characteristics of the background materials which are irradiated by quasi- plane wave have a great influence on the measuring results. To reduce the influence of the fluctuation of continuons wave laser output on measuring results, the backward scattering of the wall is measured before the foam plastic boards. Meanwhile, to eliminate the impact of wall on measuring result, the relative backward scattering intensity of different foam plastic boards and different azimuth angles of the same material are given, which is based on the biggest backward scattering intensity. The experimental results show that the scattering measurement errors of the three kinds of foam plastic boards which are relative to the wall have a significant decrease and thus the measurement accuracy of the relative backward scattering intensity in the follow-up parts is increased.

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中图分类号:TN29

DOI:10.3788/lop52.011201

所属栏目:仪器,测量与计量

责任编辑:韩峰

收稿日期:2014-06-15

修改稿日期:2014-07-15

网络出版日期:2014-11-12

作者单位    点击查看

李琦:哈尔滨工业大学可调谐激光技术国家重点实验室, 黑龙江 哈尔滨 150081
杨永发:哈尔滨工业大学可调谐激光技术国家重点实验室, 黑龙江 哈尔滨 150081
赵永蓬:哈尔滨工业大学可调谐激光技术国家重点实验室, 黑龙江 哈尔滨 150081
陈德应:哈尔滨工业大学可调谐激光技术国家重点实验室, 黑龙江 哈尔滨 150081

联系人作者:李琦(liqi2013@hit.edu.cn)

备注:李琦(1963—),女,博士,教授,主要从事激光雷达与太赫兹成像等方面的研究。

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引用该论文

Li Qi,Yang Yongfa,Zhao Yongpeng,Chen Deying. 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,陈德应. 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

被引情况

【1】刘杰,蒋均,成彬彬,陆彬,经文,张健. 典型衣物的D波段透射率研究. 光学学报, 2016, 36(7): 711001--1

【2】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. 激光与光电子学进展, 2016, 53(11): 111201--1

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