Excitation of multiple surface-plasmon polariton waves at metal/chiral sculptured thin film interfaces

Sema Erten; Akhlesh Lakhtakia

doi:10.1117/12.927859

10 October 2012 Excitation of multiple surface-plasmon polariton waves at metal/chiral sculptured thin film interfaces

Sema Erten, Akhlesh Lakhtakia

Proceedings Volume 8465, Nanostructured Thin Films V; 846513 (2012) https://doi.org/10.1117/12.927859
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

We excited multiple surface-plasmon-polariton (SPP) waves guided by the interface of a metal and a chiral sculptured thin film (STF). Chiral STFs made by thermally evaporating NaF and either 3, 4, or 5 periods in thickness were deposited on a metal film by oblique angle deposition accompanied by substrate rotation, each period being 300 nm, for plasmonic investigations in the Turbadar-Kretschmann-Raether (TKR) configuration. Reflectances were measured for a range of incidence angles for both p- and s-polarization states of the incident monochromatic light. Several reflectance minimums independent of the thickness of the chiral STF were obtained, indicating that multiple SPP waves had been excited.

Citation Download Citation

Sema Erten and Akhlesh Lakhtakia "Excitation of multiple surface-plasmon polariton waves at metal/chiral sculptured thin film interfaces", Proc. SPIE 8465, Nanostructured Thin Films V, 846513 (10 October 2012); https://doi.org/10.1117/12.927859

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