[1]苏红,周航,陈琼州,等.宽带太赫兹波光束轮廓和频率分布特性[J].深圳大学学报理工版,2010,27(2):167-172.
 SU Hong,ZHOU Hang,CHEN Qiong-zhou,et al.Beam profile and frequency distribution characterization of broadband terahertz wave[J].Journal of Shenzhen University Science and Engineering,2010,27(2):167-172.
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宽带太赫兹波光束轮廓和频率分布特性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年2期
页码:
167-172
栏目:
光电与信息工程
出版日期:
2010-04-30

文章信息/Info

Title:
Beam profile and frequency distribution characterization of broadband terahertz wave
文章编号:
1000-2618(2010)02-0167-06
作者:
苏红周航陈琼州杨海丽
深圳市激光工程重点实验室 深圳大学电子科学与技术学院,深圳518060
Author(s):
SU HongZHOU HangCHEN Qiong-zhouand YANG Hai-li
Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, P.R.China
关键词:
太赫兹光谱刀口法光束轮廓太赫兹时域光谱
Keywords:
terahertz spectrum knife-edge method beam profile terahertz time-domain spectroscopy
分类号:
TN 206;O 433.4
文献标志码:
A
摘要:
利用刀口法在透射式太赫兹时域光谱系统中对脉冲太赫兹波的光束轮廓和能量的轴向分布进行测量.通过快速傅里叶变换,可以获得太赫兹脉冲的频率分布.实验结果显示,脉冲太赫兹光斑的能量符合高斯分布.实验测量到的太赫兹光斑大小与理论基本吻合,证明刀口法可用于宽带激光光束测量.该结果为太赫兹成像以及太赫兹技术在其他领域的应用奠定了基础.
Abstract:
Beam profile and axial intensity-distribution of pulse terahertz(THz) wave were measured by the knife-edge method in a transmission-type THz time domain spectroscopy system.By fast-Fourier-transform,the frequency distribution of pulse THz wave could also be obtained.The results show that the intensity of the pulse THz beam fits the Gaussian distribution.The size of the measured THz spot is nearly in agreement with the theoretical analysis,which proved that the knife-edge method can be used to characterize the beam profile of broadband laser beam.This work will also provide the experimental data for THz imaging technology.

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备注/Memo

备注/Memo:
收稿日期:2010-03-16;修回日期:2010-04-16
基金项目:深圳市重点实验室提升发展计划资助项目(08systs08)
作者简介:苏红(1973-),女(汉族) ,山西省稷山县人,深圳大学副教授、博士.E-mail:hsu@szu.edu.cn
更新日期/Last Update: 2010-05-08