Inverted SP resonance in palladium in Kretchmann configuration

P. Kohns; E. I. Logacheva; V. S. Makin; Yu. I. Pestov

doi:10.1117/12.677895

9 June 2006 Inverted SP resonance in palladium in Kretchmann configuration

P. Kohns, E. I. Logacheva, V. S. Makin, Yu. I. Pestov

Proceedings Volume 6251, Lasers for Measurements and Information Transfer 2005; 625118 (2006) https://doi.org/10.1117/12.677895
Event: Lasers for Measurements and Information Transfer 2005, 2005, St. Petersburg, Russian Federation

Abstract

The surface plasmon resonance in Kretchmann configuration showing reflectivity maxima in thin palladium films has been discovered and investigated. The resonant curve form and angular position are influenced by thin film palladium whose properties (the frequency of nonelastic electron collisions in metal (γ) and the metal electron plasma frequency (ω_p)) depend on concentration of hydrogen in ambient medium. It is shown that by increasing the γ value and decreasing the ω_p value the resonant curve half-width broadens. Behavior of reflected beam phase as functions of γ and ω_p was simulated. It is shown that inverted resonance for surface plasmons for palladium may be used for wide class of SP-based sensors, in particular, for sensors of small hydrogen concentration.

Citation Download Citation

P. Kohns, E. I. Logacheva, V. S. Makin, and Yu. I. Pestov "Inverted SP resonance in palladium in Kretchmann configuration", Proc. SPIE 6251, Lasers for Measurements and Information Transfer 2005, 625118 (9 June 2006); https://doi.org/10.1117/12.677895

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