Abstract
We report a design method of surface plasmon polaritons sharp bends based on transformation optics. Plasmonic waveguide bends with different angles, which possess little radiation loss, are proposed. Transformation media can be simply achieved with homogeneous and nonmagnetic materials, which can be constructed by altering two different dielectric films. Electromagnetic simulations by a finite-element method on detailed examples have been performed to validate the designs.
Similar content being viewed by others
References
H. Raether, Surface Plasmons on Smooth and Rough Surfaces and on Gratings (Springer, Berlin, 1998)
E.N. Economou, Surface plasmons in thin films. Phys. Rev. 182, 539–554 (1969)
D. Sarid, Long-range surface-plasma waves on very thin metal films. Phys. Rev. Lett. 47, 1927 (1981)
J. Takahara, S. Yamagishi, H. Taki, A. Morimoto, T. Kobayashi, Guiding of a one-dimensional optical beam with nanometer diameter. Opt. Lett. 22, 475–477 (1997)
K. Tanaka, M. Tanaka, Simulations of nanometric optical circuits based on surface plasmon polariton gap waveguide. Appl. Phys. Lett. 82, 1185 (2004)
S.I. Bozhevolnyi, V.S. Volkov, E. Devaux, J.Y. Laluet, T.W. Ebbesen, Channel plasmon subwavelength waveguide components including interferometers and ring resonators. Nature (London) 440, 508–511 (2006)
G. Veronis, S. Fan, Guided subwavelength plasmonic mode supported by a slot in a thin metal film. Opt. Lett. 30, 3359–3361 (2005)
B. Wang, G.P. Wang, Simulations of nanoscale interferometer and array focusing by metal heterowaveguides. Opt. Express 13, 10558–10563 (2005)
J. Grandidier, G.C. des Francs, S. Massenot, A. Bouhelier, L. Markey, J. Weeber, C. Finot, A. Dereux, Gain-assisted propagation in a plasmonic waveguide at Telecom wavelength. Nano Lett. 9(8), 2935–2939 (2009)
E.A. Bezus, L.L. Doskolovich, N.L. Kazanskiy, Scattering suppression in plasmonic optics using a simple two-layer dielectric structure. Appl. Phys. Lett. 98, 221108 (2011)
J. Pendry, D. Schurig, D. Smith, Controlling electromagnetic fields. Science 312, 1780–1782 (2006)
U. Leonhardt, Optical conformal mapping. Science 312, 1777–1780 (2006)
Y.K. Wang, D.H. Zhang, J. Wang, X.F. Yang, D.D. Li, Z.J. Xu, Waveguide devices with homogeneous complementary media. Opt. Lett. 36, 3855–3857 (2011)
M. Rahm, D. Schurig, D.A. Roberts, S.A. Cummer, D.R. Smith, J.B. Pendry, Design of electromagnetic cloaks and concentrators using form-invariant coordinate transformations of Maxwell’s equations. Photonics Nanostruct. Fundam. Appl. 6, 87–95 (2008)
F.M. Kong, B.I. Wu, J.A. Kong, J.T. Huangfu, S. Xi, H.S. Chen, Planar focusing antenna design by using coordinate transformation technology. Appl. Phys. Lett. 91, 253509 (2007)
Z.M. Huang, J.Q. Xue, Y. Hou, J.H. Chu, D.H. Zhang, Optical magnetic response from parallel plate metamaterials. Phys. Rev. B 74(19), 193105 (2006)
D. Schurig, J.J. Mock, B.J. Justice, S.A. Cummer, J.B. Pendry, A.F. Starr, D.R. Smith, Metamaterial electromagnetic cloak at microwave frequencies. Science 314, 977 (2006)
Y. Liu, T. Zentgraf, G. Bartal, X. Zhang, Transformational plasmon optics. Nano Lett. 10, 1991–1997 (2010)
P.A. Huidobro, M.L. Nesterov, L. Martin-Moreno, F.J. Garcia-Vidal, Transformation optics for plasmonics. Nano Lett. 10, 1985–1990 (2010)
M. Kadic, S. Guenneau, S. Enoch, Transformational plasmonics: cloak, concentrator, and rotator for SPPs. Opt. Express 18, 12027–12032 (2010)
Y. Luo, A. Aubry, J.B. Pendry, Electromagnetic contribution to surface-enhanced Raman scattering from rough metal surfaces: a transformation optics approach. Phys. Rev. B 83, 155422 (2011)
P.A. Huidobro, M.L. Nesterov, L. Martin-Moreno, F.J. Garcia-Vidal, Molding the flow of surface plasmons using conformal and quasiconformal mappings. New J. Phys. 13, 033011 (2011)
J.J. Zhang, S.S. Xiao, M. Wubs, N.A. Mortensen, Surface plasmon wave adapter designed with transformation optics. ACS Nano 5, 4359–4364 (2011)
T. Zentgraf, Y.M. Liu, M.H. Mikkelsen, J. Valentine, X. Zhang, Plasmonic Luneburg and Eaton lenses. Nat. Nanotechnol. 6, 151–155 (2011)
T.C. Han, C.W. Qiu, X.H. Tang, Adaptive waveguide bends with homogeneous, nonmagnetic, and isotropic materials. Opt. Lett. 36, 181–183 (2011)
E.D. Palik, Handbook of Optical Constants of Solids (Academic Press, New York, 1985)
Acknowledgements
The project is supported by the National Research Foundation of Singapore (NRF-G-CRP 2007-01) and A∗Star (092154009).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wang, Y., Zhang, D.H., Wang, J. et al. Design of sharp bends with transformation plasmonics. Appl. Phys. A 112, 549–553 (2013). https://doi.org/10.1007/s00339-013-7773-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-013-7773-5