Abstract

We propose a new scheme on unidirectional surface plasmon-polariton (SPP) excitation with the following advantages: ultracompact size, working at arbitrary incidence angle and over a wide spectrum. The proposed structure utilizes a partially filled metallic slot with dielectric to realize unidirectional SPP excitation via direct field manipulation. We theoretically and numerically show that unidirectional SPP excitation with a ratio of 93% can be achieved by a structure with a 50 nm slot. The proposed structure keeps its functional capability over incident angles from −80° to 80°, and has a broadband working spectrum of more than 70 nm.

© 2013 OSA

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2012 (4)

2011 (3)

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

2010 (9)

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

A. Roszkiewicz and W. Nasalski, “Unidirectional SPP excitation at asymmetrical two-layered metal gratings,” J. Phys. B43(18), 185401 (2010).
[CrossRef]

C. Yan, D. H. Zhang, and D. Li, “Wedge-shaped metal-dielectric composite metamaterials for light control,” Metamaterials (Amst.)4(4), 170–174 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

I. Avrutsky, R. Soref, and W. Buchwald, “Sub-wavelength plasmonic modes in a conductor-gap-dielectric system with a nanoscale gap,” Opt. Express18(1), 348–363 (2010).
[CrossRef] [PubMed]

C. Yan, D. H. Zhang, Y. Zhang, D. Li, and M. A. Fiddy, “Metal-dielectric composites for beam splitting and far-field deep sub-wavelength resolution for visible wavelengths,” Opt. Express18(14), 14794–14801 (2010).
[CrossRef] [PubMed]

M. W. Maqsood, R. Mehfuz, and K. J. Chau, “High-throughput diffraction-assisted surface-plasmon-polariton coupling by a super-wavelength slit,” Opt. Express18(21), 21669–21677 (2010).
[CrossRef] [PubMed]

2009 (1)

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

2008 (2)

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

2007 (3)

N. Bonod, E. Popov, L. Li, and B. Chernov, “Unidirectional excitation of surface plasmons by slanted gratings,” Opt. Express15(18), 11427–11432 (2007).
[CrossRef] [PubMed]

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

2005 (1)

P. Lalanne, J. P. Hugonin, and J. C. Rodier, “Theory of surface plasmon generation at nanoslit apertures,” Phys. Rev. Lett.95(26), 263902 (2005).
[CrossRef] [PubMed]

2004 (1)

2003 (2)

W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature424(6950), 824–830 (2003).
[CrossRef] [PubMed]

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

2000 (1)

S. Astilean, Ph. Lalanne, and M. Palamaru, “Light transmission through metallic channels much smaller than the wavelength,” Opt. Commun.175(4-6), 265–273 (2000).
[CrossRef]

1982 (1)

1951 (1)

Afshinmanesh, F.

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

Aigouy, L.

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

Almeida, V. R.

Astilean, S.

S. Astilean, Ph. Lalanne, and M. Palamaru, “Light transmission through metallic channels much smaller than the wavelength,” Opt. Commun.175(4-6), 265–273 (2000).
[CrossRef]

Atwater, H. A.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Aussenegg, F. R.

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

Avrutsky, I.

Bååk, T.

Bai, B.

Barnes, W. L.

W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature424(6950), 824–830 (2003).
[CrossRef] [PubMed]

Baron, A.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

Bonod, N.

Bourhis, E.

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

Bozhevolnyi, S. I.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Brongersma, M. L.

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

Buchwald, W.

Cai, W.

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

Chau, K. J.

Chen, J.

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

Chernov, B.

Dereux, A.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature424(6950), 824–830 (2003).
[CrossRef] [PubMed]

Devaux, E.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Devore, J. R.

Ditlbacher, H.

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

Du, C.

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

Ea Kim, B.

Ebbesen, T. W.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature424(6950), 824–830 (2003).
[CrossRef] [PubMed]

Fiddy, M. A.

Gan, C. H.

Gan, D.

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

García-Vidal, F. J.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Genet, C.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

Genov, D. A.

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

Gierak, J.

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

Gong, Q.

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

Gong, Z.

M. He, J. Liu, K. Wang, X. Wang, and Z. Gong, “Efficient directional excitation of surface plasmon polaritons by partial dielectric filling slit structure,” Opt. Commun.285(21-22), 4588–4592 (2012).
[CrossRef]

González, M. U.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Harel, E.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

He, M.

M. He, J. Liu, K. Wang, X. Wang, and Z. Gong, “Efficient directional excitation of surface plasmon polaritons by partial dielectric filling slit structure,” Opt. Commun.285(21-22), 4588–4592 (2012).
[CrossRef]

Hohenau, A.

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

Hugonin, J. P.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

P. Lalanne, J. P. Hugonin, and J. C. Rodier, “Theory of surface plasmon generation at nanoslit apertures,” Phys. Rev. Lett.95(26), 263902 (2005).
[CrossRef] [PubMed]

Jin, G.

Kik, P. G.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Koel, B. E.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Krenn, J. R.

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Lalanne, P.

S. B. Raghunathan, C. H. Gan, T. van Dijk, B. Ea Kim, H. F. Schouten, W. Ubachs, P. Lalanne, and T. D. Visser, “Plasmon switching: Observation of dynamic surface plasmon steering by selective mode excitation in a sub-wavelength slit,” Opt. Express20(14), 15326–15335 (2012).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

P. Lalanne, J. P. Hugonin, and J. C. Rodier, “Theory of surface plasmon generation at nanoslit apertures,” Phys. Rev. Lett.95(26), 263902 (2005).
[CrossRef] [PubMed]

Lalanne, Ph.

S. Astilean, Ph. Lalanne, and M. Palamaru, “Light transmission through metallic channels much smaller than the wavelength,” Opt. Commun.175(4-6), 265–273 (2000).
[CrossRef]

Leitner, A.

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

Li, D.

Li, L.

Li, T.

Li, X.

Li, Z.

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

Lipson, M.

Liu, J.

M. He, J. Liu, K. Wang, X. Wang, and Z. Gong, “Efficient directional excitation of surface plasmon polaritons by partial dielectric filling slit structure,” Opt. Commun.285(21-22), 4588–4592 (2012).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Liu, J. S. Q.

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

López-Tejeira, F.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Luo, X.

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

Maier, S. A.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Maqsood, M. W.

Martín-Moreno, L.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Mehfuz, R.

Meltzer, S.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Meng, B.

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Nasalski, W.

A. Roszkiewicz and W. Nasalski, “Unidirectional SPP excitation at asymmetrical two-layered metal gratings,” J. Phys. B43(18), 185401 (2010).
[CrossRef]

Oulton, R. F.

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

Pala, R. A.

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

Palamaru, M.

S. Astilean, Ph. Lalanne, and M. Palamaru, “Light transmission through metallic channels much smaller than the wavelength,” Opt. Commun.175(4-6), 265–273 (2000).
[CrossRef]

Panepucci, R. R.

Pile, D. F. P.

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

Popov, E.

Radko, I. P.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Raghunathan, S. B.

Requicha, A. A. G.

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Rodier, J. C.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

P. Lalanne, J. P. Hugonin, and J. C. Rodier, “Theory of surface plasmon generation at nanoslit apertures,” Phys. Rev. Lett.95(26), 263902 (2005).
[CrossRef] [PubMed]

Rodrigo, S. G.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Roszkiewicz, A.

A. Roszkiewicz and W. Nasalski, “Unidirectional SPP excitation at asymmetrical two-layered metal gratings,” J. Phys. B43(18), 185401 (2010).
[CrossRef]

Rousseau, E.

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

Schouten, H. F.

Soref, R.

Sorger, V. J.

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

Steinberger, B.

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

Tan, Q.

Ubachs, W.

van Dijk, T.

Visser, T. D.

Wan, Q.

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Wang, B.

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

Wang, C.

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

Wang, K.

M. He, J. Liu, K. Wang, X. Wang, and Z. Gong, “Efficient directional excitation of surface plasmon polaritons by partial dielectric filling slit structure,” Opt. Commun.285(21-22), 4588–4592 (2012).
[CrossRef]

Wang, L.

L. Wang, T. Li, L. Li, W. Xia, X. G. Xu, and S. N. Zhu, “Electrically generated unidirectional surface plasmon source,” Opt. Express20(8), 8710–8717 (2012).
[CrossRef] [PubMed]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Wang, X.

M. He, J. Liu, K. Wang, X. Wang, and Z. Gong, “Efficient directional excitation of surface plasmon polaritons by partial dielectric filling slit structure,” Opt. Commun.285(21-22), 4588–4592 (2012).
[CrossRef]

Wang, Y.

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Weeber, J. C.

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Xia, W.

Xiang, D.

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Xu, Q.

Xu, T.

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

Xu, X. G.

Yan, C.

Yue, S.

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

Zhai, X.

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

Zhang, D. H.

Zhang, X.

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

Zhang, Y.

Zhao, Y.

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

Zhu, S. N.

Appl. Opt. (1)

Appl. Phys. Lett. (5)

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

B. Steinberger, A. Hohenau, H. Ditlbacher, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers,” Appl. Phys. Lett.91(8), 081111 (2007).
[CrossRef]

B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single-nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett.94(1), 011114 (2009).
[CrossRef]

J. Chen, Z. Li, S. Yue, and Q. Gong, “Efficient unidirectional generation of surface plasmon polaritons with asymmetric single-nanoslit,” Appl. Phys. Lett.97(4), 041113 (2010).
[CrossRef]

T. Xu, Y. Zhao, D. Gan, C. Wang, C. Du, and X. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett.92(10), 101501 (2008).
[CrossRef]

Chin. Opt. Lett. (1)

J. Opt. Soc. Am. (1)

J. Phys. B (1)

A. Roszkiewicz and W. Nasalski, “Unidirectional SPP excitation at asymmetrical two-layered metal gratings,” J. Phys. B43(18), 185401 (2010).
[CrossRef]

Metamaterials (Amst.) (1)

C. Yan, D. H. Zhang, and D. Li, “Wedge-shaped metal-dielectric composite metamaterials for light control,” Metamaterials (Amst.)4(4), 170–174 (2010).
[CrossRef]

Nano Lett. (2)

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

A. Baron, E. Devaux, J. C. Rodier, J. P. Hugonin, E. Rousseau, C. Genet, T. W. Ebbesen, and P. Lalanne, “Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons,” Nano Lett.11(10), 4207–4212 (2011).
[CrossRef] [PubMed]

Nat Commun (1)

J. S. Q. Liu, R. A. Pala, F. Afshinmanesh, W. Cai, and M. L. Brongersma, “A submicron plasmonic dichroic splitter,” Nat Commun2, 525 (2011).
[CrossRef] [PubMed]

Nat. Mater. (1)

S. A. Maier, P. G. Kik, H. A. Atwater, S. Meltzer, E. Harel, B. E. Koel, and A. A. G. Requicha, “Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle Plasmon waveguides,” Nat. Mater.2(4), 229–232 (2003).
[CrossRef] [PubMed]

Nat. Photonics (1)

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, “A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation,” Nat. Photonics2(8), 496–500 (2008).
[CrossRef]

Nat. Phys. (1)

F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. García-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. González, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys.3(5), 324–328 (2007).
[CrossRef]

Nature (1)

W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature424(6950), 824–830 (2003).
[CrossRef] [PubMed]

Opt. Commun. (4)

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

M. He, J. Liu, K. Wang, X. Wang, and Z. Gong, “Efficient directional excitation of surface plasmon polaritons by partial dielectric filling slit structure,” Opt. Commun.285(21-22), 4588–4592 (2012).
[CrossRef]

Y. Wang, L. Wang, J. Liu, X. Zhai, L. Wang, D. Xiang, Q. Wan, and B. Meng, “Plasmonic surface-wave bidirectional splitter in different angles of incident light,” Opt. Commun.283(9), 1777–1779 (2010).
[CrossRef]

S. Astilean, Ph. Lalanne, and M. Palamaru, “Light transmission through metallic channels much smaller than the wavelength,” Opt. Commun.175(4-6), 265–273 (2000).
[CrossRef]

Opt. Express (6)

Opt. Lett. (1)

Phys. Rev. Lett. (1)

P. Lalanne, J. P. Hugonin, and J. C. Rodier, “Theory of surface plasmon generation at nanoslit apertures,” Phys. Rev. Lett.95(26), 263902 (2005).
[CrossRef] [PubMed]

Other (4)

W. L. David and W. R. Hunter, “Silver (Ag),” and “Chromium (Cr),” in Handbook of Optical Constants of Solids, E. D. Palik, ed. (Academic, Orlando, Fla., 1985).

R. A. Chipman, “Optical and physical properties of materials,” in Handbook of Optics, M. Bass, ed. (McGraw-Hill, New York, 1995).

K. Y. Kim, Plasmonics - Principles and Applications (InTech Rjieka Croatia 2012), Chap. 6.

S. A. Maier, Plasmonics: Fundamentals and applications (Springer, 2007), Chap. 2.

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Figures (7)

Fig. 1
Fig. 1

Structure (a) and working principle (b) of the proposed scheme for unidirectional lunching of SPPs.

Fig. 2
Fig. 2

Demonstration of unidirectional SPP excitation at λ = 515 nm. The permittivties of Ag and Cr are −9.3 + 0.8i and −12.2 + 24i, respectively. (a) Energy distribution of the structure when a TM-polarized plane wave normally illuminates at the slot. Inset of the figure illustrates the energy distribution inside the slot with better contrast. (b) Normalized energy distribution at the output surface. (c) Energy distributions inside the partially filled slot. Cutline A and Cutline B are located at the plane 30 nm and 1 nm from the bottom of the slot, respectively.

Fig. 3
Fig. 3

Dispersion relation of SPPs at the interfaces of air/Ag (blue dashed curve) and dielectric/Ag (black solid curve), as well as the spectrum of the dominant transverse wave vector components of the scattered light (violet scatter plot). The permittivities of Ag and Cr are extracted from reference [23]. The horizontal axis and the vertical axis correspond to the real part (a) and imaginary part (b) of the wave vector and wavelength, respectively. Peaks 1 and 2 are centered at 410 nm and 350 nm, respectively.

Fig. 4
Fig. 4

Dispersion relation of SPPs at the air/Ag/dielectric layers (blue dashed curve), the dielectric/Ag/dielectric layers (even mode: red solid curve, odd mode: black dotted curve), and the spectrum of the dominant transverse wave vector components of the scattered light (violet scatter plot).

Fig. 5
Fig. 5

Intensity of the electromagnetic field confined at the dielectric/Ag and air/Ag interfaces. Peak 1, 2 and 3 are centered at 400 nm, 350 nm and 515 nm, respectively.

Fig. 6
Fig. 6

Unidirectional SPPs excitation capability (measured in term of the ratio η) of the structure (a) at different wavelength. (b) at different incidence angle. The incidence wavelength is fixed at 515 nm.

Fig. 7
Fig. 7

Main fabrication processes of the unidirectional SPP generator.

Equations (2)

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k spp = k 0 ε metal ε dielectric ε dielectric + ε metal .
e 2 k 1 a = k 1 / ε 1 + k 2 / ε 2 k 1 / ε 1 k 2 / ε 2 k 1 / ε 1 + k 3 / ε 3 k 1 / ε 1 k 3 / ε 3 .

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