Abstract
Detailed calculations of eigenmodes of waveguiding structures made of silver and glass and containing coaxial cables with a nanoscale cross section of different configurations are conducted. In particular, the study focuses on optical coaxial waveguides with the core made in the form of a thin metallic cylinder filled with a dielectric. We show that these waveguides support relatively low-loss propagation of radiation that is strongly localized in the central region, has phase velocity approaching the speed of light and predominant electric-field orientation (dipole type). Optical characteristics of such waveguides are compared with those of coaxial-type waveguides containing a continuous central filament made of metal and with a multilayer structure. Using numeric modeling, we established that the proposed type of the waveguide enables the transmission of an optical image with relatively low losses with a submicron resolution over a distance considerably longer than its cross section. A typical propagation length in the waveguides based on silver and glass with the refractive index of about 1.5 at a wavelength of 500 nm is about 1700 nm.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
W. L. Barnes, W. L. Ebbesen, and T. W. Dereux, Nature 424, 824 (2003).
J. R. Krenn et al., Europhys. Lett. 60, 663 (2002).
U. Schrter and A. Dereux, Phys. Rev. A. 64, 125 420 (2001).
A. Boltasseva et al., Opt. Express 16, 5252 (2008).
E. Feigenbaum and M. Orenstein, in Proceedings of the IEEE/LEOS Annual Meeting (Montreal, Canada, 2006), pp. 260–261.
F. I. Baida, A. Belkhir, D. Van Labeke, and O. Lamrous, Phys. Rev. B 74, 205 419 (2006).
Y. Peng, X. Wang, and K. Kempa, Opt. Express 16, 1758 (2008).
J. Alegret, P. Johansson, and M. Käll, New J. Phys. 10, 105 004 (2008).
W. Jia and X. Liu, Phys. Lett. A 344, 451 (2005).
R. De Waele, S. P. Burgos, A. Polman, and H. A. Atwater, Nano Lett. 9, 2832 (2009).
P. B. Johnson and R. W. Christy, Phys. Rev. B 6, 4370 (1972).
S. O. Konorov, O. A. Kolevatova, A. B. Fedotov, E. E. Serebryannikov, D. A. Sidorov-Biryukov, Zh. M. Mikhailova, A. N. Naumov, V. I. Veloglazov, N. B. Skibina, L. A. Mel’nikov, A. V. Shcherbakov, and A. M. Zheltikov, Zh. Eksp. Teor. Fiz. 96, 857 (2003).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © O.N. Kozina, L.A. Mel’nikov, I.S. Nefedov, 2011, published in Optika i Spektroskopiya, 2011, Vol. 111, No. 2, pp. 273–279.
Rights and permissions
About this article
Cite this article
Kozina, O.N., Mel’nikov, L.A. & Nefedov, I.S. Strong field localization in subwavelength metal-dielectric optical waveguides. Opt. Spectrosc. 111, 241–247 (2011). https://doi.org/10.1134/S0030400X11080182
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0030400X11080182