ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Tunable terahertz radiation from arbitrary profile dielectric grating coated with graphene excited by an electron beam |
Zhao Tao (赵陶)a b, Zhong Ren-Bin (钟任斌)a b, Hu Min (胡旻)a b, Chen Xiao-Xing (陈晓行)a b, Zhang Ping (张平)a b, Gong Sen (龚森)a b, Liu Sheng-Gang (刘盛纲)a b |
a Terahertz Research Center, School of Physical Electronics, University of Electronic Scienceand Technology of China, Chengdu 610054, China;
b Cooperative Innovation Centre of Terahertz Science, Chengdu 610054, China |
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Abstract In this paper, the enhanced terahertz radiation transformed from surface plasmon polaritons, excited by a uniformly moving electron bunch, in a structure consisting of a monolayer graphene supported on a dielectric grating with arbitrary profile is investigated. The results show that the grating profile has significant influence on the dispersion curves and radiation characteristics including radiation frequency and intensity. The dependence of dispersion and radiation characteristics on the grating shape for both the symmetric and asymmetric gratings is studied in detail. Moreover, we find that, for an asymmetric grating with certain profile, there exist two different diffraction types, and one of the two types can provide higher radiation intensity comparing to the other one. These results will definitely facilitate the practical application in developing a room-temperature, tunable, coherent and miniature terahertz radiation source.
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Received: 15 April 2015
Revised: 08 June 2015
Accepted manuscript online:
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PACS:
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41.60.-m
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(Radiation by moving charges)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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Fund: Project supported by the National Basic Research Program of China (Grant No. 2014CB339801), the National Natural Science Foundation of China (Grant Nos. 61231005, 11305030, and 612111076), the Fundamental Research Funds for the Central Universities of China (Grant No. ZYGX2013J058), and the National High-tech Research and Development Project of China (Grant No. 2011AA010204). |
Corresponding Authors:
Zhong Ren-Bin
E-mail: rbzhong@uestc.edu.cn
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Cite this article:
Zhao Tao (赵陶), Zhong Ren-Bin (钟任斌), Hu Min (胡旻), Chen Xiao-Xing (陈晓行), Zhang Ping (张平), Gong Sen (龚森), Liu Sheng-Gang (刘盛纲) Tunable terahertz radiation from arbitrary profile dielectric grating coated with graphene excited by an electron beam 2015 Chin. Phys. B 24 094102
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[1] |
Boubanga-Tombet S, Chan S, Watanabe T, Satou A, Ryzhii V and Otsuji T 2012 Phys. Rev. B 85 035443
|
[2] |
Watanabe T, Fukushima T, Yabe Y, Tombet S A B, Satou A, Dubinov A A, Aleshkin Y V, Mitin V, Ryzhii V and Otsuji T 2013 New J. Phys. 15 075003
|
[3] |
Prechtel L, Song L, Schuh D, Ajayan P, Wegscheider W and Holleitner A W 2012 Nat. Commun. 3 646
|
[4] |
Ramakrishnan G, Chakkittakandy R and Planken P C M 2009 Opt. Express 17 16092
|
[5] |
Tantiwanichapan K, DiMaria J, Melo N S and Paiella R 2013 Nanotechnology 24 375205
|
[6] |
Liu S G, Zhang C, Hu M, Chen X X, Zhang P, Gong S, Zhao T and Zhong R B 2014 Appl. Phys. Lett. 104 201104
|
[7] |
Zhan T R, Han D Z, Hu X H, Liu X H, Chui S T and Zi J 2014 Phys. Rev. B 89 245434
|
[8] |
Barnes W L, Dereux A and Ebbesen T W 2003 Nature 424 824
|
[9] |
Koppens F H L, Chang D E and García de Abajo F J 2011 Nano Lett. 11 3370
|
[10] |
Horng J, Chen C F, Geng B, Girit C, Zhang Y, Hao Z, Bechtel H A, Martin M, Zettl A and Crommie M F 2011 Phys. Rev. B 83 165113
|
[11] |
Correc P 1988 IEEE J. Quantum. Elect. 1 24
|
[12] |
Kawamura K, Ogawa T, Sarukura N, Hirano M and Hosono H 2000 Appl. Phys. B 71 119
|
[13] |
Wan H, Chen X R and Wu J H 2005 Proc. SPIE 5636 101
|
[14] |
Bruckner C, Pradarutti B, Stenzel O, Steinkopf R, Riehemann S, Notni G and Tunnermann A 2007 Opt. Express 15 779
|
[15] |
Guan H Y, Jin Y X, Liu S J, Kong F Y, Du Y, He K, Yi K and Shao J D 2013 Laser Phys. 23 115301
|
[16] |
Liu S G, Zhang P, Liu W H, Gong S, Zhong R B, Zhang Y X and Hu M 2012 Phys. Rev. Lett. 109 153902
|
[17] |
Moharam M G and Gaylord T K 1981 J. Opt. Soc. Am. 71 811
|
[18] |
Moharam M G and Gaylord T K 1982 J. Opt. Soc. Am. 72 1385
|
[19] |
Li L F and Haggans C W 1993 J. Opt. Soc. Am. 10 1184
|
[20] |
Li L F 1996 J. Opt. Soc. Am. 13 1870
|
[21] |
Hanson G W 2008 J. Appl. Phys. 103 064302
|
[22] |
Wang B, Zhang X, Yuan X and Teng 2012 Appl. Phys. Lett. 100 131111
|
[23] |
Moharam M G, Pommet D A and Grann E B 1995 J. Opt. Soc. Am. 12 1077
|
[24] |
George P A, Strait J, Dawlaty J, Shivaraman S, Chandrashekhar M, Rana F and Spencer M G 2008 Nano Lett. 8 12
|
[25] |
Li L F 1996 J. Opt. Soc. Am. A 13 1024
|
[26] |
Tan W C, Preist T W, Sambles J R and Wanstall N P 1999 Phys. Rev. B 59 12661
|
[27] |
Bludov Y V, Peres N M R and Vasilevskiy M I 2012 Phys. Rev. B 85 245409
|
[28] |
Zhan T R, Zhao F Y, Hu X H, Liu X H and Zi J 2012 Phys. Rev. B 86 165416
|
[29] |
Bludov Y V, Ferreira A, Peres N M R and Vasilevskiy M I 2013 Int. J. Mod. Phys. B 27 1341001
|
[30] |
Zhao T, Zhong R B, Hu M, Chen X X, Zhang P, Gong S and Liu S G 2015 Eur. Phys. J. D 69 120
|
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