Local optical properties of semicontinuous metallic films of varying metal concentrations

Author

Seal, Krishanu ; Nelson ; Shalaev, Vladimir M. ; Ying

Author_Institution

Dept. of Phys., New Mexico State Univ., Las Cruces, NM, USA

fYear

2002

fDate

19-24 May 2002

Firstpage

36

Abstract

Summary form only given. Semicontinuous metallic films with nanoscaled structures exhibit unique optical properties because there always exist structures in resonance with irradiation at any wavelength in the optical and infrared spectral region. The electric field near such films is highly non-uniform at the nanometer scale, and the local field can exceed the applied field by several orders of magnitude due to localized surface plasmon excitations. In this paper, we report our studies of local light intensity distribution of semicontinuous silver films and its correlation with far-field optical spectra and electrical transport properties.

Keywords

discontinuous metallic thin films; near-field scanning optical microscopy; optical constants; percolation; silver; surface plasmon resonance; Ag; DC electrical conductivity; dielectric microcavities; far-field optical spectra; local enhancement factor; local optical properties; localized surface plasmon excitations; microcavity resonance modes; nanoscaled structures; percolation; photon scanning tunneling microscopy; semicontinuous metallic films; varying metal concentrations; Conducting films; Silver;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-708-3

Type

conf

DOI

10.1109/QELS.2002.1031054

Filename

1031054