成像与成谱联动的太赫兹分析检测仪
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摘要
自制的太赫兹量子级联激光器性能良好且易于集成和实际应用。利用该激光器出射的太赫兹波对非金属物质的穿透性,在该激光器中配以辅助光路与阵列接收模块,设计出具有一定空间尺度和分辨率的透射式成像系统,对该成像系统中的光束整形关键参数选择因素进行了分析。将此成像系统与基于光电导天线对收发的全光纤太赫兹时域光谱系统相结合,实现了联动式太赫兹分析仪的设计。此联动式太赫兹分析仪可对非金属包装中的隐匿物品进行太赫兹波段成像与指纹谱的联动获取,整机操作软件能在后台控制与监控内部各设备,实现了对危险品的快速、直观、准确的定位以及对物品种类的无损分析。
A terahertz quantum cascade laser,which is made in-house,has excellent device performance and is easy for integration and application.Terahertz wave emitted from the laser device can penetrate non-metal materials with little loss.A transmission imaging system with certain spatial dimension and resolution is built with the terahertz quantum cascade laser together with peripheral supporting optics and an array receiving module.Key parameters in the beam shaping are studied.A terahertz joint analyzer is developed by using the imaging system together with an all fiber terahertz time domain spectrum system based on photoconductive antenna.The terahertz joint analyzer can detect both terahertz imaging and fingerprints of objects hidden in non-metal packaging.The operation software of the whole instrument can control and monitor all the devices inside.The terahertz joint analyzer system offers a method of fast,intuitive and accurate location and non-destructive analysis for the detecting objects.
A terahertz quantum cascade laser,which is made in-house,has excellent device performance and is easy for integration and application.Terahertz wave emitted from the laser device can penetrate non-metal materials with little loss.A transmission imaging system with certain spatial dimension and resolution is built with the terahertz quantum cascade laser together with peripheral supporting optics and an array receiving module.Key parameters in the beam shaping are studied.A terahertz joint analyzer is developed by using the imaging system together with an all fiber terahertz time domain spectrum system based on photoconductive antenna.The terahertz joint analyzer can detect both terahertz imaging and fingerprints of objects hidden in non-metal packaging.The operation software of the whole instrument can control and monitor all the devices inside.The terahertz joint analyzer system offers a method of fast,intuitive and accurate location and non-destructive analysis for the detecting objects.
引文
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11 Oda N,Lee A W M,Ishi T,et al..Proposal for real-time terahertz imaging system,with palm-size terahertz camera and compact quantum cascade laser[C].SPIE,2012,8363:83630A.
12 Zhao Ziran,Wang Yingxin.Development of portable terahertz time-domain spectrometer[J].Journal of Terahertz Science and Electronic Information Technology,2013,11(1):57-61. 赵自然,王迎新.便携式太赫兹时域光谱仪的研制[J].太赫兹科学与电子信息学报,2013,11(1):57-61.
13 Zhu Yiming.Testing of drug using terahertz time-domain spectroscopy[J].Modern Scientific Instruments,2012,6:30-32. 朱亦鸣.太赫兹技术在药物检测中的应用[J].现代科学仪器,2012,6:30-32.
14 Jan Martin R,Georg V F.A terahertz time-domain spectroscopy-based network analyzer[J].IEEE Journal of Lightwave Technology,2015,33(2):403-407.
15 Zhao Feng,Long Shuming,Zhang Yuanyuan,et al..Fingerprint data extraction from Chinese herbal medicines with terahertz spectrum based on second-order harmonic oscillator model[J].Acta Physica Sinica,2015,64(2):024202. 赵 峰,龙姝明,张圆圆,等.太赫兹电磁波低通滤波器与中药材指纹数据提取[J].物理学报,2015,64(2):024202.
16 Li Xinghuo,Zhuo Hongbin,Zou Debin.Study of ultra-intense laser driven solid line emitting terahertz wave[J].Acta Optica Sinica,2015,35(3):0314003. 李星火,卓红斌,邹德滨.超强激光驱动天线靶的太赫兹辐射物理特性研究[J].光学学报,2015,35(3):0314003.
17 Huang Zhanhua,Hu Zixiao,He Mingxia,et al..Terahertz time-domain spectroscopy rapid data acquisition based on closed-loop control[J].Laser &Optoelectronics Progress,2015,52(4):040401. 黄战华,胡子晓,何明霞,等.基于闭环控制的太赫兹时域光谱快速采集[J].激光与光电子学进展,2015,52(4):040401.
18 Kou Kuan,Zhao Guozhong,Liu Ying,et al..Simultaneously determinations of sample thickness and refractive index by terahertz time-domain spectroscopy[J].Chinese J Lasers,2015,42(8):0815001. 寇 宽,赵国忠,刘 英,等.利用太赫兹时域光谱同时确定样品厚度和折射率[J].中国激光,2015,42(8):0815001.
19 Li H,Cao J C,Liu H C.Effects of design parameters on the performance of terahertz quantum-cascade lasers[J].Semiconductor Science and Technology,2008,23(12):125040.
2 He Ting,Zhang Bo,Zhang Cunlin,et al..Research on illicit drugs and explosive based on terahertz spectroscopy detection[C].The 2nd Seminar on Hazardous Materials &Security Emergency Technology,2013:193-200. 和 挺,张 波,张存林,等.危险品的太赫兹光谱研究[C].第二届全国危险物质与安全应急技术研讨会论文集,2013:193-200.
3 Du Yu,Zhang Weibin,Xiao Li.Application of terahertz wave technology in explosive analysis[J].Information and Electronic Engineering,2011,9(3):287-290. 杜 宇,张伟斌,肖 丽.太赫兹检测技术在炸药检测中的应用[J].信息与电子工程,2011,9(3):287-290.
4 Lu Shuhua.Detection of explosives by terahertz spectroscopic techniques[J].Laser &Optoelectronics Progress,2012,49(4):040006. 卢树华.基于太赫兹光谱技术的爆炸物类危险品检测[J].激光与光电子学进展,2012,49(4):040006.
5 Tan Zhiyong,Zhang Zhenzhen,Zhou Tao,et al..Study of terahertz quantum device and its application in image experiments[J].Modern Scientific Instruments,2012,6:18-19. 谭志勇,张真真,周 涛,等.太赫兹量子器件及其成像实验研究[J].现代科学仪器,2012,6:18-19.
6 Liang Baowen,Ye Limin,LüZhaoshun,et al..Design of two-dimensional THz imaging optical system[J].High Power Laser and Particle Beams,2015,27(5):053103. 梁宝雯,叶利民,吕照顺,等.二维太赫兹探测成像光学系统设计[J].强激光与粒子束,2015,27(5):053103.
7 Tan Z Y,Zhou T,Cao J C,et al..Terahertz imaging with quantum-cascade laser and quantum-well photodetector[J].IEEE Photonics Technology Letters,2013,25(14):1344-1346.
8 Tan Z Y,Zhou T,Fu Z L,et al..Reflection imaging with terahertz quantum-cascade laser and quantum-well photodetector[J].Electronics Letters,2014,50(5):389-391.
9 Guo Xuguang,Gu Liangliang,Fu Zhanglong,et al..Research on terahertz quantum-well photodetectors[J].Laser &Optoelectronics Progress,2015,52(9):092302. 郭旭光,顾亮亮,符张龙,等.太赫兹量子阱探测器研究[J].激光与光电子学进展,2015,52(9):092302.
10 Oda N,Ishi T,Morimoto T,et al..Real-time transmission-type terahertz microscope,with palm size terahertz camera and compact quantum cascade laser[C].SPIE,2012,8496:84960Q.
11 Oda N,Lee A W M,Ishi T,et al..Proposal for real-time terahertz imaging system,with palm-size terahertz camera and compact quantum cascade laser[C].SPIE,2012,8363:83630A.
12 Zhao Ziran,Wang Yingxin.Development of portable terahertz time-domain spectrometer[J].Journal of Terahertz Science and Electronic Information Technology,2013,11(1):57-61. 赵自然,王迎新.便携式太赫兹时域光谱仪的研制[J].太赫兹科学与电子信息学报,2013,11(1):57-61.
13 Zhu Yiming.Testing of drug using terahertz time-domain spectroscopy[J].Modern Scientific Instruments,2012,6:30-32. 朱亦鸣.太赫兹技术在药物检测中的应用[J].现代科学仪器,2012,6:30-32.
14 Jan Martin R,Georg V F.A terahertz time-domain spectroscopy-based network analyzer[J].IEEE Journal of Lightwave Technology,2015,33(2):403-407.
15 Zhao Feng,Long Shuming,Zhang Yuanyuan,et al..Fingerprint data extraction from Chinese herbal medicines with terahertz spectrum based on second-order harmonic oscillator model[J].Acta Physica Sinica,2015,64(2):024202. 赵 峰,龙姝明,张圆圆,等.太赫兹电磁波低通滤波器与中药材指纹数据提取[J].物理学报,2015,64(2):024202.
16 Li Xinghuo,Zhuo Hongbin,Zou Debin.Study of ultra-intense laser driven solid line emitting terahertz wave[J].Acta Optica Sinica,2015,35(3):0314003. 李星火,卓红斌,邹德滨.超强激光驱动天线靶的太赫兹辐射物理特性研究[J].光学学报,2015,35(3):0314003.
17 Huang Zhanhua,Hu Zixiao,He Mingxia,et al..Terahertz time-domain spectroscopy rapid data acquisition based on closed-loop control[J].Laser &Optoelectronics Progress,2015,52(4):040401. 黄战华,胡子晓,何明霞,等.基于闭环控制的太赫兹时域光谱快速采集[J].激光与光电子学进展,2015,52(4):040401.
18 Kou Kuan,Zhao Guozhong,Liu Ying,et al..Simultaneously determinations of sample thickness and refractive index by terahertz time-domain spectroscopy[J].Chinese J Lasers,2015,42(8):0815001. 寇 宽,赵国忠,刘 英,等.利用太赫兹时域光谱同时确定样品厚度和折射率[J].中国激光,2015,42(8):0815001.
19 Li H,Cao J C,Liu H C.Effects of design parameters on the performance of terahertz quantum-cascade lasers[J].Semiconductor Science and Technology,2008,23(12):125040.