Realization of THz dualband absorber with periodic cross-shaped graphene metamaterials
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摘要
A dualband terahertz(THz) absorber including periodically distributed cross-shaped graphene arrays and a gold layer spaced by a thin dielectric layer is investigated.Numerical results reveal that the THz absorber displays two perfect absorption peaks.To elucidate the resonant behavior, the LC model is introduced to fit the spectra.Moreover, the strength and linewidth of the absorption peak can be effectively tuned with structural parameters and the relaxation time of graphene.Owing to its rotational symmetry, this THz absorber exhibits polarization insensitivity.Our designed absorber is a promising candidate in applications of tunable optical sensors and optical filters.
A dualband terahertz(THz) absorber including periodically distributed cross-shaped graphene arrays and a gold layer spaced by a thin dielectric layer is investigated.Numerical results reveal that the THz absorber displays two perfect absorption peaks.To elucidate the resonant behavior, the LC model is introduced to fit the spectra.Moreover, the strength and linewidth of the absorption peak can be effectively tuned with structural parameters and the relaxation time of graphene.Owing to its rotational symmetry, this THz absorber exhibits polarization insensitivity.Our designed absorber is a promising candidate in applications of tunable optical sensors and optical filters.
A dualband terahertz(THz) absorber including periodically distributed cross-shaped graphene arrays and a gold layer spaced by a thin dielectric layer is investigated.Numerical results reveal that the THz absorber displays two perfect absorption peaks.To elucidate the resonant behavior, the LC model is introduced to fit the spectra.Moreover, the strength and linewidth of the absorption peak can be effectively tuned with structural parameters and the relaxation time of graphene.Owing to its rotational symmetry, this THz absorber exhibits polarization insensitivity.Our designed absorber is a promising candidate in applications of tunable optical sensors and optical filters.
引文
[1]Landy N I, Sajuyigbe S and Mock J J 2008 Phys.Rev.Lett.100 207402
[2]Ye Y Q, Jin Y and He S 2010 J.Opt.Soc.Am.B 27 498
[3]Wang B X, Wang L L, Wang G Z, Huang W Q, Li X F and Zhai X 2014J.Lightwave.Technol.32 1183
[4]Luo C, Li D, Luo Q, Yue J, Gao P, Yao J and Ling F 2015 J.Alloys Compd.652 18
[5]Huang L and Chen H T 2013 Terahertz Sci.Technol.6 26
[6]Ra’Di Y, Simovski C R and Tretyakov S A 2015 Phys.Rev.Appl.3037001
[7]Hussain S, Woo M J and Jang J H 2012 Appl.Phys.Lett.101 091103
[8]Shen X and Cui T J 2012 J.Opt.14 114012
[9]Li X, Liu H, Sun Q and Huang N 2015 Photonics Nanostruct.Fundam.Appl.15 81
[10]Liu S, Chen H and Cui T J 2015 Appl.Phys.Lett.106 151601
[11]Aydin K, Ferry V E, Briggs R M and Atwater H A 2011 Nat.Commun.2 517
[12]He J N, Wang J Q, Fan C Z and Liang E J 2015 Opt.Express 23 6083
[13]Arik K, Abdollahramezani S and Khavasi A 2017 Plasmonics 12 393
[14]Vakil A and Engheta N 2011 Science 332 1291
[15]Fallahi A and Perruisseau-Carrier J 2012 J.Phys.Rev.B 86 195408
[16]Alaee R, Farhat M, Rockstuhl C and Lederer F 2012 Opt.Express 2028017
[17]Luo X, Qiu T and Lu W 2013 Mat.Sci.Eng.R 74 351
[18]Bonaccorso F, Sun Z, Hasan T and Ferrari A 2010 Nat.Photonics 4611
[19]Zhang Y, Feng Y, Zhu B, Zhao J and Jiang T 2014 Opt.Express 2222743
[20]Wang B X, Wang G Z and Sang T 2016 J.Phys.D:Appl.Phys.49165307
[21]Logan D L 2011 A First Course in the Finite Element Method(6th edn.)(Boston:Cengage Learning)
[22]Thongrattanasiri S, Koppens F and de Abajo F J G 2012 Phys.Rev.Lett.108 047401
[23]Yao Y, Kats M A, Genevet P, Song N, Yu Y, Kong J and Capasso F2013 Nano Lett.13 1257
[24]Gusynin V P, Sharapov S G and Carbotte J P 2006 J.Phys.:Condens.Matter 19 026222
[25]Falkovsky L A and Pershoguba S S 2007 Phys.Rev.B 76 153410
[26]Jablan M, Buljan H and Solja?i? M 2009 Phys.Rev.B 80 245435
[27]Hanson G W 2008 J.Appl.Phys.103 064302
[28]Zhou J, Zhang L, Tuttle G, Koschny T and Soukoulis C M 2006 Phys.Rev.B 73 041101
[29]Novotny L 2007 Phys.Rev.Lett.98 266802
[30]Koppens F H L, Chang D E and Javier G D A F 2011 Nano Lett.113370
[31]Fu G L, Zhai X, Li H J, Xia S X and Wang L L 2016 Plasmonics 111597
[32]Chen C F, Park C H, Boudouris B W, Horng J, Geng B, Girit C, Zettl A, Crommie M F, Segalman R A, Louie S G and Wang F 2011 Nature471 617
[33]Fang Z Y, Thongrattanasiri S, Schlather A, Liu Z, Ma L L, Wang Y M,Ajayan P M, Nordlander P, Halas N J and de Abajo F J G 2013 ACS Nano 7 2388
[34]Jiang T, Huang D, Cheng J L, Fan X D, Zhang Z H, Shan Y W, Yi Y F,Dai Y Y, Shi L, Liu K H, Zeng C G, Zi J, Sipe J E, Shen Y R, Liu W T and Wu S W 2018 Nat.Photonics 12 430
[35]Near R, Tabor C, Duan J and El-Sayed M 2012 Nano Lett.12 2158
[36]Chen W T, Chen C J, Wu P C, Sun S, Zhou L, Guo G Y, Hsiao C T,Yang K Y, Zheludev N I and Tsai D P 2011 Opt.Express 19 12837
[37]Fang Z, Wang Y, Schlather A E, Liu Z, Ajayan P M, Javier F, de Abajo F J G, Nordlander P, Zhu X and Halas N J 2014 Nano Lett.14 299
[38]Yu X, Shi L, Han D, Zi J and Broun P V 2010 Adv.Funct.Mater.201910
[39]Wang B X, Wang G Z and Sang T 2016 J.Phys.D:Appl.Phys.49165307
[2]Ye Y Q, Jin Y and He S 2010 J.Opt.Soc.Am.B 27 498
[3]Wang B X, Wang L L, Wang G Z, Huang W Q, Li X F and Zhai X 2014J.Lightwave.Technol.32 1183
[4]Luo C, Li D, Luo Q, Yue J, Gao P, Yao J and Ling F 2015 J.Alloys Compd.652 18
[5]Huang L and Chen H T 2013 Terahertz Sci.Technol.6 26
[6]Ra’Di Y, Simovski C R and Tretyakov S A 2015 Phys.Rev.Appl.3037001
[7]Hussain S, Woo M J and Jang J H 2012 Appl.Phys.Lett.101 091103
[8]Shen X and Cui T J 2012 J.Opt.14 114012
[9]Li X, Liu H, Sun Q and Huang N 2015 Photonics Nanostruct.Fundam.Appl.15 81
[10]Liu S, Chen H and Cui T J 2015 Appl.Phys.Lett.106 151601
[11]Aydin K, Ferry V E, Briggs R M and Atwater H A 2011 Nat.Commun.2 517
[12]He J N, Wang J Q, Fan C Z and Liang E J 2015 Opt.Express 23 6083
[13]Arik K, Abdollahramezani S and Khavasi A 2017 Plasmonics 12 393
[14]Vakil A and Engheta N 2011 Science 332 1291
[15]Fallahi A and Perruisseau-Carrier J 2012 J.Phys.Rev.B 86 195408
[16]Alaee R, Farhat M, Rockstuhl C and Lederer F 2012 Opt.Express 2028017
[17]Luo X, Qiu T and Lu W 2013 Mat.Sci.Eng.R 74 351
[18]Bonaccorso F, Sun Z, Hasan T and Ferrari A 2010 Nat.Photonics 4611
[19]Zhang Y, Feng Y, Zhu B, Zhao J and Jiang T 2014 Opt.Express 2222743
[20]Wang B X, Wang G Z and Sang T 2016 J.Phys.D:Appl.Phys.49165307
[21]Logan D L 2011 A First Course in the Finite Element Method(6th edn.)(Boston:Cengage Learning)
[22]Thongrattanasiri S, Koppens F and de Abajo F J G 2012 Phys.Rev.Lett.108 047401
[23]Yao Y, Kats M A, Genevet P, Song N, Yu Y, Kong J and Capasso F2013 Nano Lett.13 1257
[24]Gusynin V P, Sharapov S G and Carbotte J P 2006 J.Phys.:Condens.Matter 19 026222
[25]Falkovsky L A and Pershoguba S S 2007 Phys.Rev.B 76 153410
[26]Jablan M, Buljan H and Solja?i? M 2009 Phys.Rev.B 80 245435
[27]Hanson G W 2008 J.Appl.Phys.103 064302
[28]Zhou J, Zhang L, Tuttle G, Koschny T and Soukoulis C M 2006 Phys.Rev.B 73 041101
[29]Novotny L 2007 Phys.Rev.Lett.98 266802
[30]Koppens F H L, Chang D E and Javier G D A F 2011 Nano Lett.113370
[31]Fu G L, Zhai X, Li H J, Xia S X and Wang L L 2016 Plasmonics 111597
[32]Chen C F, Park C H, Boudouris B W, Horng J, Geng B, Girit C, Zettl A, Crommie M F, Segalman R A, Louie S G and Wang F 2011 Nature471 617
[33]Fang Z Y, Thongrattanasiri S, Schlather A, Liu Z, Ma L L, Wang Y M,Ajayan P M, Nordlander P, Halas N J and de Abajo F J G 2013 ACS Nano 7 2388
[34]Jiang T, Huang D, Cheng J L, Fan X D, Zhang Z H, Shan Y W, Yi Y F,Dai Y Y, Shi L, Liu K H, Zeng C G, Zi J, Sipe J E, Shen Y R, Liu W T and Wu S W 2018 Nat.Photonics 12 430
[35]Near R, Tabor C, Duan J and El-Sayed M 2012 Nano Lett.12 2158
[36]Chen W T, Chen C J, Wu P C, Sun S, Zhou L, Guo G Y, Hsiao C T,Yang K Y, Zheludev N I and Tsai D P 2011 Opt.Express 19 12837
[37]Fang Z, Wang Y, Schlather A E, Liu Z, Ajayan P M, Javier F, de Abajo F J G, Nordlander P, Zhu X and Halas N J 2014 Nano Lett.14 299
[38]Yu X, Shi L, Han D, Zi J and Broun P V 2010 Adv.Funct.Mater.201910
[39]Wang B X, Wang G Z and Sang T 2016 J.Phys.D:Appl.Phys.49165307