Abstract
The coupling effect in a near-field object–superlens system has been studied, where the object is a silver cylinder and the superlens is a silver slab. A semi-analytical formulation has been established to study the system with and without the coupling effect. The analysis shows that the coupling effect significantly changes the field distributions of both the object and the image, leading to the conclusion that such a system must be designed and analyzed as a whole. Our study also suggests that it is possible to design a superlens system with mismatched permittivities.
Similar content being viewed by others
References
V.G. Veselago, Electrodynamics of substances with simultaneously negative values of sigma and mu. Sov. Phys., Usp. USSR 10, 509–514 (1968)
J.B. Pendry, Negative refraction makes a perfect lens. Phys. Rev. Lett. 85, 3966–3969 (2000)
S.H. Jiang, R. Pike, A full electromagnetic simulation study of near-field imaging using silver films. New J. Phys. 7, 169 (2005)
S.A. Ramakrishna, J.B. Pendry, The asymmetric lossy near-perfect lens. J. Mod. Opt. 49, 1747–1762 (2002)
S.A. Ramakrishna, J.B. Pendry, M.C.K. Wiltshire, W.J. Stewart, Imaging the near field. J. Mod. Opt. 50, 1419–1430 (2003)
Z.W. Liu, N. Fang, T.J. Yen, X. Zhang, Rapid growth of evanescent wave by a silver superlens. Appl. Phys. Lett. 83, 5184–5186 (2003)
R. Borghi, F. Gori, M. Santarsiero, F. Frezza, G. Schettini, Plane-wave scattering by a perfectly conducting circular cylinder near a plane surface: cylindrical-wave approach. J. Opt. Soc. Am. A, Opt. Image Sci. Vis. 13, 483–493 (1996)
R. Borghi, M. Santarsiero, F. Frezza, G. Schettini, Plane-wave scattering by a dielectric circular cylinder parallel to a general reflecting flat surface. J. Opt. Soc. Am. A, Opt. Image Sci. Vis. 14, 1500–1504 (1997)
J.J. Bowman, T.B.A. Senior, P.L.E. Uslenghi, Electromagnetic and Acoustic Scattering by Simple Shapes (North-Holland, Amsterdam, 1969), revised edn.
A. Madrazo, M. Nietovesperinas, Scattering of electromagnetic-waves from a cylinder in front of a conducting plane. J. Opt. Soc. Am. A, Opt. Image Sci. Vis. 12, 1298–1309 (1995)
P.J. Valle, F. Gonzalez, F. Moreno, Electromagnetic-wave scattering from conducting cylindrical structures on flat substrates—study by means of the extinction theorem. Appl. Opt. 33, 512–523 (1994)
P.J. Valle, F. Moreno, J.M. Saiz, F. Gonzalez, Near-field scattering from subwavelength metallic protuberances on conducting flat substrates. Phys. Rev. B 51, 13681–13690 (1995)
C.F. Bohren, D.R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983)
P. Yeh, Optical Waves in Layered Media (Wiley, New York, 1988)
P.B. Johnson, R.W. Christy, Optical constants of noble metals. Phys. Rev. B 6, 4370–4379 (1972)
Z.T. Liu, M.D. Thoreson, A.V. Kildishev, V.M. Shalaev, Translation of nanoantenna hot spots by a metal–dielectric composite superlens. Appl. Phys. Lett. 95, 033114 (2009)
M.D. Thoreson, R.B. Nielsen, P.R. West, A. Kriesch, Z.T. Liu, J.R. Fang, A.V. Kildishev, U. Pescheld, V.M. Shalaev, A. Boltasseva, Studies of plasmonic hot-spot translation by a metal–dielectric layered superlens, in Metamaterials: Fundamentals and Applications IV, ed. by A.D. Boardman et al. SPIE Proc., vol. 8093 (SPIE, Bellingham, 2011)
Acknowledgements
The work was supported in part by ARO-50342-PH-MUR and NSF-DMR 1120923.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, Z., Shalaev, V.M. & Kildishev, A.V. Coupling effect in a near-field object–superlens system. Appl. Phys. A 107, 83–88 (2012). https://doi.org/10.1007/s00339-012-6780-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-012-6780-2