Excitation of surface plasma wave at TiN/air interface in the Kretschmann geometry

N. C. Chen, W. C. Lien, C. R. Liu, Y. L. Huang, Y. R. Lin, C. Chou, S. Y. Chang, C. W. Ho

Research output: Contribution to journalJournal Article peer-review

39 Scopus citations

Abstract

Since titanium nitride appears golden and has a high conductivity, the possibility that it can be used in surface plasma wave applications in a manner similar to gold but with very strong scratch-resistance, is of interest. This work considers this possibility using the Kretschmann configuration, measuring the angle-dependent reflectivity as well as the wavelength-dependent reflectivity. Both sets of results demonstrate the excitation of a surface plasma wave at the TiN/air interface by an incident p-wave. The thickness of TiN that most efficiently couples the incident p-wave to the surface plasma wave is around 35 nm. All of the experiments are accompanied by corresponding numerical simulations.

Original languageEnglish
Article number043104
JournalJournal of Applied Physics
Volume109
Issue number4
DOIs
StatePublished - 15 02 2011

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