Abstract

An infrared dual-band perfect absorber based on asymmetric T-shaped plasmonic array is designed and numerically investigated. Two distinct absorption peaks are achieved by localized surface plasmon polariton (LSPP) mode over a wide incident angular range. Both the absorption peaks can be finely tuned independently by varying the geometry of the structure. In our proposed structure, the period of the T-shaped structures becomes less and the multiple LSPP peaks are suppressed, which result in the sideband of absorption peaks very low. This dual-band perfect absorber has potential applications such as in infrared imaging devices, thermal bolometers, and wavelength selective radiators.

© 2014 Optical Society of America

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2014 (1)

L. Wang, A. Haider, and Z. Zhang, “Effect of magnetic polaritons on the radiative properties of inclined plate arrays,” J. Quant. Spectrosc. Radiat. Transf. 132, 52–60 (2014).

2013 (4)

W. Chih-Ming and T. Din Ping, “Plasmonic infrared bandstop reflective filter,” IEEE J. Sel. Top. Quantum Electron. 19(3), 4601005 (2013).
[CrossRef]

C.-M. Wang and C.-J. Yu, “Free-space plasmonic filter with dual-resonance wavelength using asymmetric T-shaped metallic array,” Plasmonics 8(2), 385–390 (2013).
[CrossRef]

B. Zhang, J. Hendrickson, and J. Guo, “Multispectral near-perfect metamaterial absorbers using spatially multiplexed plasmon resonance metal square structures,” J. Opt. Soc. Am. B 30(3), 656–662 (2013).
[CrossRef]

N. Zhang, P. Zhou, D. Cheng, X. Weng, J. Xie, and L. Deng, “Dual-band absorption of mid-infrared metamaterial absorber based on distinct dielectric spacing layers,” Opt. Lett. 38(7), 1125–1127 (2013).
[CrossRef] [PubMed]

2012 (7)

2011 (10)

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

C. W. Cheng, M. N. Abbas, M. H. Shih, and Y. C. Chang, “Characterization of the surface plasmon polariton band gap in an Ag/SiO2/Ag T-shaped periodical structure,” Opt. Express 19(24), 23698–23705 (2011).
[CrossRef] [PubMed]

C. J. Chen, J. S. Chen, and Y. B. Chen, “Optical responses from lossy metallic slit arrays under the excitation of a magnetic polariton,” J. Opt. Soc. Am. B 28(8), 1798–1806 (2011).
[CrossRef]

L. P. Wang and Z. M. Zhang, “Phonon-mediated magnetic polaritons in the infrared region,” Opt. Express 19(S2Suppl 2), A126–A135 (2011).
[CrossRef] [PubMed]

B. Zhang, Y. Zhao, Q. Hao, B. Kiraly, I. C. Khoo, S. Chen, and T. J. Huang, “Polarization-independent dual-band infrared perfect absorber based on a metal-dielectric-metal elliptical nanodisk array,” Opt. Express 19(16), 15221–15228 (2011).
[CrossRef] [PubMed]

J. Grant, Y. Ma, S. Saha, A. Khalid, and D. R. Cumming, “Polarization insensitive, broadband terahertz metamaterial absorber,” Opt. Lett. 36(17), 3476–3478 (2011).
[CrossRef] [PubMed]

C. W. Cheng, M. N. Abbas, Z. C. Chang, M. H. Shih, C. M. Wang, M. C. Wu, and Y. C. Chang, “Angle-independent plasmonic infrared band-stop reflective filter based on the Ag/SiO₂/Ag T-shaped array,” Opt. Lett. 36(8), 1440–1442 (2011).
[CrossRef] [PubMed]

M. N. Abbas, C. W. Cheng, Y. C. Chang, M. H. Shih, H. H. Chen, and S. C. Lee, “Angle and polarization independent narrow-band thermal emitter made of metallic disk on SiO2,” Appl. Phys. Lett. 98(12), 121116 (2011).
[CrossRef]

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

2010 (4)

2009 (2)

Y. C. Chang, C. M. Wang, M. N. Abbas, M. H. Shih, and D. P. Tsai, “T-shaped plasmonic array as a narrow-band thermal emitter or biosensor,” Opt. Express 17(16), 13526–13531 (2009).
[CrossRef] [PubMed]

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

2008 (1)

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

2007 (1)

Abbas, M. N.

Bingham, C.

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Bouchon, P.

P. Bouchon, C. Koechlin, F. Pardo, R. Haïdar, and J. L. Pelouard, “Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas,” Opt. Lett. 37(6), 1038–1040 (2012).
[CrossRef] [PubMed]

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Buchwald, W.

Chang, Y. C.

C. W. Cheng, M. N. Abbas, C. W. Chiu, K. T. Lai, M. H. Shih, and Y. C. Chang, “Wide-angle polarization independent infrared broadband absorbers based on metallic multi-sized disk arrays,” Opt. Express 20(9), 10376–10381 (2012).
[CrossRef] [PubMed]

C. W. Cheng, M. N. Abbas, M. H. Shih, and Y. C. Chang, “Characterization of the surface plasmon polariton band gap in an Ag/SiO2/Ag T-shaped periodical structure,” Opt. Express 19(24), 23698–23705 (2011).
[CrossRef] [PubMed]

C. W. Cheng, M. N. Abbas, Z. C. Chang, M. H. Shih, C. M. Wang, M. C. Wu, and Y. C. Chang, “Angle-independent plasmonic infrared band-stop reflective filter based on the Ag/SiO₂/Ag T-shaped array,” Opt. Lett. 36(8), 1440–1442 (2011).
[CrossRef] [PubMed]

M. N. Abbas, C. W. Cheng, Y. C. Chang, M. H. Shih, H. H. Chen, and S. C. Lee, “Angle and polarization independent narrow-band thermal emitter made of metallic disk on SiO2,” Appl. Phys. Lett. 98(12), 121116 (2011).
[CrossRef]

M. N. Abbas, Y. C. Chang, and M. H. Shih, “Plasmon-polariton band structures of asymmetric T-shaped plasmonic gratings,” Opt. Express 18(3), 2509–2514 (2010).
[CrossRef] [PubMed]

Y. C. Chang, C. M. Wang, M. N. Abbas, M. H. Shih, and D. P. Tsai, “T-shaped plasmonic array as a narrow-band thermal emitter or biosensor,” Opt. Express 17(16), 13526–13531 (2009).
[CrossRef] [PubMed]

C. M. Wang, Y. C. Chang, M. W. Tsai, Y. H. Ye, C. Y. Chen, Y. W. Jiang, Y. T. Chang, S. C. Lee, and D. P. Tsai, “Reflection and emission properties of an infrared emitter,” Opt. Express 15(22), 14673–14678 (2007).
[CrossRef] [PubMed]

Chang, Y. T.

Chang, Z. C.

Chen, C. J.

Chen, C. Y.

Chen, H. H.

M. N. Abbas, C. W. Cheng, Y. C. Chang, M. H. Shih, H. H. Chen, and S. C. Lee, “Angle and polarization independent narrow-band thermal emitter made of metallic disk on SiO2,” Appl. Phys. Lett. 98(12), 121116 (2011).
[CrossRef]

Chen, J. S.

Chen, S.

Chen, Y.

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

Chen, Y. B.

Cheng, C. W.

Cheng, D.

Chih-Ming, W.

W. Chih-Ming and T. Din Ping, “Plasmonic infrared bandstop reflective filter,” IEEE J. Sel. Top. Quantum Electron. 19(3), 4601005 (2013).
[CrossRef]

Chiu, C. W.

Cui, Y.

F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, “Ultra-broadband microwave metamaterial absorber,” Appl. Phys. Lett. 100(10), 103506 (2012).
[CrossRef]

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Cumming, D. R.

Deng, L.

Desieres, Y.

J. Le Perchec, Y. Desieres, N. Rochat, and R. Espiau de Lamaestre, “Subwavelength optical absorber with an integrated photon sorter,” Appl. Phys. Lett. 100(11), 113305 (2012).
[CrossRef]

Din Ping, T.

W. Chih-Ming and T. Din Ping, “Plasmonic infrared bandstop reflective filter,” IEEE J. Sel. Top. Quantum Electron. 19(3), 4601005 (2013).
[CrossRef]

Ding, F.

F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, “Ultra-broadband microwave metamaterial absorber,” Appl. Phys. Lett. 100(10), 103506 (2012).
[CrossRef]

Espiau de Lamaestre, R.

J. Le Perchec, Y. Desieres, N. Rochat, and R. Espiau de Lamaestre, “Subwavelength optical absorber with an integrated photon sorter,” Appl. Phys. Lett. 100(11), 113305 (2012).
[CrossRef]

Fang, N. X.

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Fung, K. H.

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Ge, X.

F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, “Ultra-broadband microwave metamaterial absorber,” Appl. Phys. Lett. 100(10), 103506 (2012).
[CrossRef]

Grant, J.

Guo, J.

Haïdar, R.

P. Bouchon, C. Koechlin, F. Pardo, R. Haïdar, and J. L. Pelouard, “Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas,” Opt. Lett. 37(6), 1038–1040 (2012).
[CrossRef] [PubMed]

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Haider, A.

L. Wang, A. Haider, and Z. Zhang, “Effect of magnetic polaritons on the radiative properties of inclined plate arrays,” J. Quant. Spectrosc. Radiat. Transf. 132, 52–60 (2014).

Hao, J.

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

Hao, Q.

He, S.

F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, “Ultra-broadband microwave metamaterial absorber,” Appl. Phys. Lett. 100(10), 103506 (2012).
[CrossRef]

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Y. Q. Ye, Y. Jin, and S. He, “Omnidirectional, polarization-insensitive and broadband thin absorber in the terahertz regime,” J. Opt. Soc. Am. B 27(3), 498–504 (2010).
[CrossRef]

Hendrickson, J.

Huang, T. J.

Hung Fung, K.

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Jaeck, J.

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Jiang, Y. W.

Jin, Y.

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, “Ultra-broadband microwave metamaterial absorber,” Appl. Phys. Lett. 100(10), 103506 (2012).
[CrossRef]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Y. Q. Ye, Y. Jin, and S. He, “Omnidirectional, polarization-insensitive and broadband thin absorber in the terahertz regime,” J. Opt. Soc. Am. B 27(3), 498–504 (2010).
[CrossRef]

Jokerst, N.

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Khalid, A.

Khoo, I. C.

Kiraly, B.

Koechlin, C.

P. Bouchon, C. Koechlin, F. Pardo, R. Haïdar, and J. L. Pelouard, “Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas,” Opt. Lett. 37(6), 1038–1040 (2012).
[CrossRef] [PubMed]

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Kumar, A.

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Lafosse, X.

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Lai, K. T.

Landy, N.

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Landy, N. I.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

Le Perchec, J.

J. Le Perchec, Y. Desieres, N. Rochat, and R. Espiau de Lamaestre, “Subwavelength optical absorber with an integrated photon sorter,” Appl. Phys. Lett. 100(11), 113305 (2012).
[CrossRef]

Lee, S. C.

M. N. Abbas, C. W. Cheng, Y. C. Chang, M. H. Shih, H. H. Chen, and S. C. Lee, “Angle and polarization independent narrow-band thermal emitter made of metallic disk on SiO2,” Appl. Phys. Lett. 98(12), 121116 (2011).
[CrossRef]

C. M. Wang, Y. C. Chang, M. W. Tsai, Y. H. Ye, C. Y. Chen, Y. W. Jiang, Y. T. Chang, S. C. Lee, and D. P. Tsai, “Reflection and emission properties of an infrared emitter,” Opt. Express 15(22), 14673–14678 (2007).
[CrossRef] [PubMed]

Liu, X.

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

Ma, H.

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Ma, Y.

Mock, J. J.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

Padilla, W.

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Padilla, W. J.

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

Pardo, F.

P. Bouchon, C. Koechlin, F. Pardo, R. Haïdar, and J. L. Pelouard, “Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas,” Opt. Lett. 37(6), 1038–1040 (2012).
[CrossRef] [PubMed]

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Pelouard, J. L.

P. Bouchon, C. Koechlin, F. Pardo, R. Haïdar, and J. L. Pelouard, “Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas,” Opt. Lett. 37(6), 1038–1040 (2012).
[CrossRef] [PubMed]

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

Qiu, M.

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

Rochat, N.

J. Le Perchec, Y. Desieres, N. Rochat, and R. Espiau de Lamaestre, “Subwavelength optical absorber with an integrated photon sorter,” Appl. Phys. Lett. 100(11), 113305 (2012).
[CrossRef]

Saha, S.

Sajuyigbe, S.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

Shih, M. H.

Shvets, G.

Smith, D.

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Smith, D. R.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

Soref, R.

Tsai, D. P.

Tsai, M. W.

Tyler, T.

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Wang, C. M.

Wang, C.-M.

C.-M. Wang and C.-J. Yu, “Free-space plasmonic filter with dual-resonance wavelength using asymmetric T-shaped metallic array,” Plasmonics 8(2), 385–390 (2013).
[CrossRef]

Wang, J.

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

Wang, L.

L. Wang, A. Haider, and Z. Zhang, “Effect of magnetic polaritons on the radiative properties of inclined plate arrays,” J. Quant. Spectrosc. Radiat. Transf. 132, 52–60 (2014).

L. Wang and Z. M. Zhang, “Effect of magnetic polaritons on the radiative properties of double-layer nanoslit arrays,” J. Opt. Soc. Am. B 27(12), 2595–2604 (2010).
[CrossRef]

Wang, L. P.

Weng, X.

Wu, C.

Wu, M. C.

Xie, J.

Xu, J.

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

Yan, M.

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

Ye, Y. H.

Ye, Y. Q.

Yu, C.-J.

C.-M. Wang and C.-J. Yu, “Free-space plasmonic filter with dual-resonance wavelength using asymmetric T-shaped metallic array,” Plasmonics 8(2), 385–390 (2013).
[CrossRef]

Zhang, B.

Zhang, N.

Zhang, Z.

L. Wang, A. Haider, and Z. Zhang, “Effect of magnetic polaritons on the radiative properties of inclined plate arrays,” J. Quant. Spectrosc. Radiat. Transf. 132, 52–60 (2014).

Zhang, Z. M.

Zhao, Y.

Zhou, L.

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

Zhou, P.

Appl. Phys. Lett. (6)

J. Hao, J. Wang, X. Liu, W. J. Padilla, L. Zhou, and M. Qiu, “High performance optical absorber based on a plasmonic metamaterial,” Appl. Phys. Lett. 96(25), 251104 (2010).
[CrossRef]

M. N. Abbas, C. W. Cheng, Y. C. Chang, M. H. Shih, H. H. Chen, and S. C. Lee, “Angle and polarization independent narrow-band thermal emitter made of metallic disk on SiO2,” Appl. Phys. Lett. 98(12), 121116 (2011).
[CrossRef]

F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, “Ultra-broadband microwave metamaterial absorber,” Appl. Phys. Lett. 100(10), 103506 (2012).
[CrossRef]

Y. Cui, J. Xu, K. Hung Fung, Y. Jin, A. Kumar, S. He, and N. X. Fang, “A thin film broadband absorber based on multi-sized nanoantennas,” Appl. Phys. Lett. 99(25), 253101 (2011).
[CrossRef]

J. Le Perchec, Y. Desieres, N. Rochat, and R. Espiau de Lamaestre, “Subwavelength optical absorber with an integrated photon sorter,” Appl. Phys. Lett. 100(11), 113305 (2012).
[CrossRef]

C. Koechlin, P. Bouchon, F. Pardo, J. Jaeck, X. Lafosse, J. L. Pelouard, and R. Haïdar, “Total routing and absorption of photons in dual color plasmonic antennas,” Appl. Phys. Lett. 99(24), 241104 (2011).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

W. Chih-Ming and T. Din Ping, “Plasmonic infrared bandstop reflective filter,” IEEE J. Sel. Top. Quantum Electron. 19(3), 4601005 (2013).
[CrossRef]

J. Appl. Phys. (1)

J. Wang, Y. Chen, J. Hao, M. Yan, and M. Qiu, “Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared,” J. Appl. Phys. 109(7), 074510 (2011).
[CrossRef]

J. Opt. Soc. Am. B (4)

J. Quant. Spectrosc. Radiat. Transf. (1)

L. Wang, A. Haider, and Z. Zhang, “Effect of magnetic polaritons on the radiative properties of inclined plate arrays,” J. Quant. Spectrosc. Radiat. Transf. 132, 52–60 (2014).

Nano Lett. (1)

Y. Cui, K. H. Fung, J. Xu, H. Ma, Y. Jin, S. He, and N. X. Fang, “Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab,” Nano Lett. 12(3), 1443–1447 (2012).
[CrossRef] [PubMed]

Opt. Express (7)

M. N. Abbas, Y. C. Chang, and M. H. Shih, “Plasmon-polariton band structures of asymmetric T-shaped plasmonic gratings,” Opt. Express 18(3), 2509–2514 (2010).
[CrossRef] [PubMed]

L. P. Wang and Z. M. Zhang, “Phonon-mediated magnetic polaritons in the infrared region,” Opt. Express 19(S2Suppl 2), A126–A135 (2011).
[CrossRef] [PubMed]

C. W. Cheng, M. N. Abbas, C. W. Chiu, K. T. Lai, M. H. Shih, and Y. C. Chang, “Wide-angle polarization independent infrared broadband absorbers based on metallic multi-sized disk arrays,” Opt. Express 20(9), 10376–10381 (2012).
[CrossRef] [PubMed]

B. Zhang, Y. Zhao, Q. Hao, B. Kiraly, I. C. Khoo, S. Chen, and T. J. Huang, “Polarization-independent dual-band infrared perfect absorber based on a metal-dielectric-metal elliptical nanodisk array,” Opt. Express 19(16), 15221–15228 (2011).
[CrossRef] [PubMed]

Y. C. Chang, C. M. Wang, M. N. Abbas, M. H. Shih, and D. P. Tsai, “T-shaped plasmonic array as a narrow-band thermal emitter or biosensor,” Opt. Express 17(16), 13526–13531 (2009).
[CrossRef] [PubMed]

C. M. Wang, Y. C. Chang, M. W. Tsai, Y. H. Ye, C. Y. Chen, Y. W. Jiang, Y. T. Chang, S. C. Lee, and D. P. Tsai, “Reflection and emission properties of an infrared emitter,” Opt. Express 15(22), 14673–14678 (2007).
[CrossRef] [PubMed]

C. W. Cheng, M. N. Abbas, M. H. Shih, and Y. C. Chang, “Characterization of the surface plasmon polariton band gap in an Ag/SiO2/Ag T-shaped periodical structure,” Opt. Express 19(24), 23698–23705 (2011).
[CrossRef] [PubMed]

Opt. Lett. (6)

Phys. Rev. B (1)

N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, and W. Padilla, “Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging,” Phys. Rev. B 79(12), 125104 (2009).
[CrossRef]

Phys. Rev. Lett. (1)

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett. 100(20), 207402 (2008).
[CrossRef] [PubMed]

Plasmonics (1)

C.-M. Wang and C.-J. Yu, “Free-space plasmonic filter with dual-resonance wavelength using asymmetric T-shaped metallic array,” Plasmonics 8(2), 385–390 (2013).
[CrossRef]

Other (1)

E. D. Palik, Handbook of Optical Constants of Solids (Academic, Boston, 1985).

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Figures (8)

Fig. 1
Fig. 1

(a) Schematic structure of the proposed dual-band perfect absorber. The two dashed lines show the centers of the top cap and the post, respectively. (b) Another two absorber structures with only one cavity (i.e., w2 = 0 or w1 = 0) on either side of the structures for comparison. The cavity lengths are the same (i.e., w1 and w2 respectively) as the asymmetric T-shaped structure.

Fig. 2
Fig. 2

Absorption spectra of the asymmetric T-shaped structure and two comparison absorbers at normal incidence. The red and blue curves represent the absorptivity of the structure with only one cavity on right or left side, as shown by the two insets.

Fig. 3
Fig. 3

Absorption spectra of the designed absorber with various cavity lengths (a) on left side and (b) on right side, while keeping the cavity length of the other side unchanged. Green triangles indicate the resonance wavelength calculated from the LC circuit model.

Fig. 4
Fig. 4

Schematic of the equivalent inductor and capacitor circuit model. The arrows represent electric current flows in one cavity of the asymmetric T-shaped structure.

Fig. 5
Fig. 5

Absorption spectra as a function of wavelength and the cavity length difference Δ varying from 0.4 μm to −0.4 μm.

Fig. 6
Fig. 6

Comparison of absorption spectra between the convention sandwich and the asymmetric T-shaped structure with the incident angle θ = 25°. The convention sandwich structure is shown in the inset.

Fig. 7
Fig. 7

Calculated distributions of the normalized magnetic field modulus ( | H y / H i n c | ) at the resonant peaks of (a) 6.53 μm, and (b) 4.61 μm. The enhanced magnetic fields are confined within the respective cavity at the corresponding wavelength.

Fig. 8
Fig. 8

Absorption spectra of the dual-band absorber change with the incident angle. The two red strips clearly show two strong absorption bands almost independent of the incident angle.

Equations (1)

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Z t o t = i ω ( L m + L e ) 1 ω 2 C e ( L m + L e ) i ω C m + i ω ( L m + L e )

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