|
|
Experimental research on spectrum and imaging of continuous-wave terahertz radiation based on interferometry |
Tie-Lin Lu(卢铁林)1, Hui Yuan(袁 慧)1, Ling-Qin Kong(孔令琴)1, Yue-Jin Zhao(赵跃进)1, Liang-Liang Zhang(张亮亮)2, Cun-Lin Zhang(张存林)2 |
1 Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China; 2 Department of Physics, Capital Normal University, Beijing 100048, China |
|
|
Abstract A system for measuring terahertz spectrum is proposed based on optical interferometer theory, and is experimentally demonstrated by using a backward-wave oscillator as the terahertz source. A high-resolution, high-precision interferometer is constructed by using a pyroelectric detector and a chopper. The results show that the spectral resolution is better than 1 GHz and the relative error of frequency is less than 3%. The terahertz energy density distribution is calculated by an inverse Fourier transform and tested to verify the feasibility of the interferometric approach. Two kinds of carbon-fiber composites are imaged. The results confirm that the interferometer is useful for transmission imaging of materials with different thickness values.
|
Received: 29 January 2016
Revised: 16 March 2016
Accepted manuscript online:
|
PACS:
|
07.57.Kp
|
(Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors)
|
|
52.70.Kz
|
(Optical (ultraviolet, visible, infrared) measurements)
|
|
07.60.Ly
|
(Interferometers)
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61377109 and 11374007). |
Corresponding Authors:
Yue-Jin Zhao
E-mail: yjzhao@bit.edu.cn
|
Cite this article:
Tie-Lin Lu(卢铁林), Hui Yuan(袁 慧), Ling-Qin Kong(孔令琴), Yue-Jin Zhao(赵跃进), Liang-Liang Zhang(张亮亮), Cun-Lin Zhang(张存林) Experimental research on spectrum and imaging of continuous-wave terahertz radiation based on interferometry 2016 Chin. Phys. B 25 080702
|
[1] |
Peiponen K E, Zeitler A and Kuwata-Gonokami M 2012 Terahertz Spectroscopy and Imaging, 2nd edn. (New York:Springer) pp. 29-40
|
[2] |
Lu T L, Yuan H, Zhang J S, Zhang L L, Zhang C L and Zhao Y J 2015 Proceedings of International Optical Instruments and Technology, April 17-19, 2015, Beijing, China, p. 962506
|
[3] |
Yang Z G, Zhao B Q, Liu J S and Wang K J 2013 Physics 42 708 (in Chinese)
|
[4] |
Yang Y P, Yang Y H and Grischkowsky D R 2013 Physics 42 712 (in Chinese)
|
[5] |
Capasso F, Paiella R, Martini R, Colombelli R, Gmachl C, Myers T L, Taubman M S, Williams R M, Bethea C G, Unterrainer K, Hwang H Y, Sivco D L, Cho A Y, Sergent A M, Liu H C and Whittaker E A 2002 IEEE J. Quantum Electron. 38 511
|
[6] |
Yokoyama S, Nakamura R, Nose M, Araki T and Yasui T 2008 Opt. Express 16 13052
|
[7] |
Yasui T, Nakamura R, Kawamoto K, Ihara A, Fujimoto Y, Yokoyama S, Inaba H, Minoshima K, Nagatsuma T and Araki T 2009 Opt. Express 17 17034
|
[8] |
Gaal P, Raschke M B, Reimann K and Woerner M 2007 Nat. Photon. 1 577
|
[9] |
Yasui T, Kabetani Y, Saneyoshi E, Yokoyama S and Araki T 2006 Appl. Phys. Lett. 88 241104
|
[10] |
Morikawa O, Tani M, Fujita M and Hangyo M 2007 Jpn. J. Appl. Phys. 46 951
|
[11] |
Kokkonen K and Kaivola M 2008 Appl. Phys. Lett. 92 063502
|
[12] |
Deninger A J, Göbel T, Schönherr D, Kinder T, Roggenbuck A, Köberle M, Lison F, Müller-Wirts T and Meissner P 2008 Rev. Sci. Instrum. 79 044702
|
[13] |
Johnson J L, Dorney T D and Mittleman D M 2000 Appl. Phys. Lett. 78 835
|
[14] |
Naftaly M, Dean P, Miles R E, Fletcher J and Malcoci A 2008 IEEE J. Quantum Electron. 14 443
|
[15] |
Zhao J, Zhang L L, Luo Y M, Wu T, Zhang C L and Zhao Y J 2014 Chin. Phys. B 23 127201
|
[16] |
Zhang L L, Mu K J, Zhou Y S, Wang H, Zhang C L and Zhang X C 2015 Sci. Rep. 5 12536
|
[17] |
Hils B, Thomson M D, Löffler T, Spiegel W, Weg C, Roskos H, Maagt P, Doyle D and Geckeler R 2008 Opt. Express 16 11289
|
[18] |
Wang X, Hou L and Zhang Y 2010 Appl. Opt. 49 5095
|
[19] |
Wang Y, Zhao Z, Chen Z, Zhang L, Kang K and Deng J 2011 Appl. Opt. 50 6452
|
[20] |
Sun W, Wang X and Zhang Y 2013 Optik-International Journal for Light and Electron Optics 124 5533
|
[21] |
Wichmann M, Stein M, Rahimi-Iman A, Koch S W and Koch M 2014 Journal of Infrared, Millimeter and Terahertz Waves 35 503
|
[22] |
Hecht E and Zajac A 2002 Optics, 4nd edn. (San Francisco:Addison-Wesley) pp. 519-556
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|