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ON ‘EXTRAORDINARY OPTICAL TRANSMISSION’ FROM PERIODIC AND RANDOM NANOSTRUCTURES

P. Sharlandjiev1, D. Nazarova1,* , B. Mednikarov2, M. Pham3

Affiliation

  1. Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, G. Bonchev Str., bl. 101, 1113 Sofia, Bulgaria
  2. Central Laboratory for Photoprocesses, Bulgarian Academy of Sciences, G. Bonchev Str., bl. 109, 1113 Sofia, Bulgaria
  3. Institute of Ion Beam Physics and Materials Research, Forschungszentrum Rossendorf, POB 51 01 19, 01314 Dresden, Germany

Abstract

Recently, an enhanced optical transmission (EOT) through 2D periodic arrays of sub wavelength holes in a metal layer was found. It generated intense theoretical and experimental research, but its physical nature is still not elucidated. In this communication, we report experimental investigations on 1D relief gratings, and numerical analysis of the composite structure of randomly distributed dielectric nanoparticles embedded in a thin metallic matrix. We show that EOT is also present in such structures..

Keywords

Gratings, Composite thin films, Nanoparticles.

Submitted at: Dec. 9, 2004
Accepted at: Jan. 26, 2005

Citation

P. Sharlandjiev, D. Nazarova, B. Mednikarov, M. Pham, ON ‘EXTRAORDINARY OPTICAL TRANSMISSION’ FROM PERIODIC AND RANDOM NANOSTRUCTURES, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 1, pp. 309-312 (2005)