Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications

doi:10.1088/1674-1056/ab9296

中国物理B ›› 2020, Vol. 29 ›› Issue (7): 78705-078705.doi: 10.1088/1674-1056/ab9296

所属专题： SPECIAL TOPIC —Terahertz physics

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇下一篇

Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications

Yao-Chun Shen(沈耀春), Xing-Yu Yang(杨星宇), Zi-Jian Zhang(张子健)

Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK

收稿日期:2020-04-01 修回日期:2020-05-04 出版日期:2020-07-05 发布日期:2020-07-05
通讯作者: Yao-Chun Shen E-mail:ycshen@liverpool.ac.uk
基金资助:
Project supported by the Royal Society and Natural Science Foundation of China (NSFC) International Exchanges Cost Share (IEC\backslashNSFC\backslash181415).

Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications

Yao-Chun Shen(沈耀春), Xing-Yu Yang(杨星宇), Zi-Jian Zhang(张子健)

Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK

Received:2020-04-01 Revised:2020-05-04 Online:2020-07-05 Published:2020-07-05
Contact: Yao-Chun Shen E-mail:ycshen@liverpool.ac.uk
Supported by:
Project supported by the Royal Society and Natural Science Foundation of China (NSFC) International Exchanges Cost Share (IEC\backslashNSFC\backslash181415).

摘要/Abstract

摘要： We report a broadband terahertz time-domain spectroscopy (THz-TDS) which enables twenty vibrational modes of adenosine nucleoside to be resolved in a wide frequency range of 1-20 THz. The observed spectroscopic features of adenosine are in good agreement with the published spectra obtained using Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. This much extended bandwidth leads to enhanced material characterization capability as it provides spectroscopic information on both intra- and inter-molecular vibrations. In addition, we also report a low-cost frequency modulation continuous wave (FMCW) imaging system which has a fast measurement speed of 40000 waveforms per second. Cross-sectional imaging capability through cardboard has also been demonstrated using its excellent penetration capability at a frequency range of 76-81 GHz. We anticipate that the integration of these two complementary imaging technologies would be highly desirable for many real-world applications because it provides both spectroscopic discrimination and penetration capabilities in a single instrument.

关键词: terahertz time-domain spectroscopy (THz-TDS), FMCW radar, adenosine nucleoside

Abstract: We report a broadband terahertz time-domain spectroscopy (THz-TDS) which enables twenty vibrational modes of adenosine nucleoside to be resolved in a wide frequency range of 1-20 THz. The observed spectroscopic features of adenosine are in good agreement with the published spectra obtained using Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. This much extended bandwidth leads to enhanced material characterization capability as it provides spectroscopic information on both intra- and inter-molecular vibrations. In addition, we also report a low-cost frequency modulation continuous wave (FMCW) imaging system which has a fast measurement speed of 40000 waveforms per second. Cross-sectional imaging capability through cardboard has also been demonstrated using its excellent penetration capability at a frequency range of 76-81 GHz. We anticipate that the integration of these two complementary imaging technologies would be highly desirable for many real-world applications because it provides both spectroscopic discrimination and penetration capabilities in a single instrument.

Key words: terahertz time-domain spectroscopy (THz-TDS), FMCW radar, adenosine nucleoside

中图分类号: (Nucleotides)

87.14.gf

82.80.Gk (Analytical methods involving vibrational spectroscopy) 78.47.J- (Ultrafast spectroscopy (<1 psec)) 84.40.-x (Radiowave and microwave (including millimeter wave) technology)

沈耀春, 杨星宇, 张子健. Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications[J]. 中国物理B, 2020, 29(7): 78705-078705.

Yao-Chun Shen(沈耀春), Xing-Yu Yang(杨星宇), Zi-Jian Zhang(张子健). Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications[J]. Chin. Phys. B, 2020, 29(7): 78705-078705.

参考文献 27

[1]	Ferguson B and Zhang X C 2002 Nat. Mater. 1 26 doi: 10.1038/nmat708
[2]	Jepsen P U, Cooke D G and Koch M 2011 Laser Photon. Rev. 5 124 doi: 10.1002/lpor.201000011
[3]	Zeitler J A and Shen Y C 2012 Industrial Applications of Terahertz Imaging In: Terahertz Spectroscopy and Imaging. Springer Series in Optical Sciences, Peiponen K E, Zeitler A and Kuwata-Gonokami M (Eds.) Vol. 171 (Berlin: Springer) p. 451
[4]	Karpowicz N, Zhong H, Xu J, Lin K I, Hwang J S and Zhang X C 2005 Semicond. Sci. Technol. 20 S293
[5]	Auston D, Cheung K and Smith P 1984 Appl. Phys. Lett. 45 284 doi: 10.1063/1.95174
[6]	Katzenellenbogen N and Grischkowsky D 1991 Appl. Phys. Lett. 58 222 doi: 10.1063/1.104695
[7]	Berry C W, Wang N, Hashemi M R, Unlu M and Jarrahi M 2013 Nat. Commun. 4 1622 doi: 10.1038/ncomms2638
[8]	Wu Q and Zhang X C 1997 Appl. Phys. Lett. 71 1285 doi: 10.1063/1.119873
[9]	Kaindl R, Eickemeyer F, Woerner M and Elsaesser T 1999 Appl. Phys. Lett. 75 1060 doi: 10.1063/1.124596
[10]	Xie X, Dai J and Zhang X C 2006 Phys. Rev. Lett. 96 075005 doi: 10.1103/PhysRevLett.96.075005
[11]	Yiwen E, Jin Q, Tcypkin A and Zhang X 2018 Appl. Phys. Lett. 113 181103 doi: 10.1063/1.5054599
[12]	Shen Y C, Upadhya P, Beere H, Linfield E, Davies A, Gregory I, Baker C, Tribe W and Evans M 2004 Appl. Phys. Lett. 85 164 doi: 10.1063/1.1768313
[13]	Wu Q and Zhang X C 1995 Appl. Phys. Lett. 67 3523 doi: 10.1063/1.114909
[14]	Hartwick T, Hodges D, Barker D and Foote F 1976 Appl. Opt. 15 1919 doi: 10.1364/AO.15.001919
[15]	Grossman E, Dietlein C, Ala-Laurinaho J, Leivo M, Gronberg L, Gronholm M, Lappalainen P, Rautiainen A, Tamminen A and Luukanen A 2010 Appl. Opt. 49 E106
[16]	Appleby R 2004 Philos. Trans. R. Soc. A 362 379 doi: 10.1098/rsta.2003.1323
[17]	Bhutani A, Marahrens S, Gehringer M, Göttel B, Pauli M and Zwick T 2019 Sensors 19 3938 doi: 10.3390/s19183938
[18]	Bilik I, Longman O, Villeval S and Tabrikian J 2019 IEEE Signal Process. Mag. 36 20
[19]	Shen Y C, Upadhya P, Linfield E, Beere H and Davies A 2003 Appl. Phys. Lett. 83 3117 doi: 10.1063/1.1619223
[20]	Singh A, Pashkin A, Winnerl S, Welsch M, Beckh C, Sulzer P, Leitenstorfer A, Helm M and Schneider H 2020 Light Sci. Appl. 9 1 doi: 10.1038/s41377-019-0231-1
[21]	Hale P, Madeo J, Chin C, Dhillon S, Mangeney J, Tignon J and Dani K 2014 Opt. Express 22 26358 doi: 10.1364/OE.22.026358
[22]	Fischer B, Walther M and Jepsen P U 2002 Phys. Med. Biol. 47 3807 doi: 10.1088/0031-9155/47/21/319
[23]	Bailey L E, Navarro R and Hernanz A 1997 Biospectroscopy 3 47 doi: 10.1002/(SICI)1520-6343(1997)3:1<47::AID-BSPY4>3.0.CO;2-P
[24]	Plazanet M, Fukushima N and Johnson M 2002 Chem. Phys. 280 53 doi: 10.1016/S0301-0104(02)00441-X
[25]	Mathlouthi M, Seuvre A M and Koenig J L 1984 Carbohydr. Res. 131 1
[26]	Xiao Z Y and Wang Z H 2006 J. Opt. Soc. Am. B 23 1757
[27]	Shen Y C and Taday P F 2008 IEEE J. Sel. Top. Quantum Electron. 14 407 doi: 10.1109/JSTQE.2007.911309

Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications

Broadband terahertz time-domain spectroscopy and fast FMCW imaging: Principle and applications

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