Excitation of surface-plasmon-polariton waves in the Turbadar–Otto configuration guided by an interface with a columnar thin film

Maimoona Naheed; Muhammad Faryad

doi:10.1117/1.JNP.13.036001

3 July 2019 Excitation of surface-plasmon-polariton waves in the Turbadar–Otto configuration guided by an interface with a columnar thin film

Maimoona Naheed, Muhammad Faryad

Author Affiliations +

Journal of Nanophotonics, Vol. 13, Issue 3, 036001 (July 2019). https://doi.org/10.1117/1.JNP.13.036001

Abstract

The excitation of the surface-plasmon-polariton (SPP) waves in the prism-coupled configuration is commonly implemented in Turbadar–Kretschmann–Raether (TKR) configuration, where the prism is attached to a metallic thin film and the columnar thin film (CTF) is present on the opposite side of the metallic film. We present the results of excitation of SPP waves in the alternative prism-coupled configuration, that is, the Turbadar–Otto configuration where the prism is affixed to the CTF. Comparison of the Turbadar–Otto and the TKR configuration showed that the absorption peaks in the angular spectrum are narrower and easier to discern in the former than the latter configuration. The computations also showed the usefulness of the Turbadar–Otto configuration for the optical sensing of a fluid infiltrating the void regions of the CTF.

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Maimoona Naheed and Muhammad Faryad "Excitation of surface-plasmon-polariton waves in the Turbadar–Otto configuration guided by an interface with a columnar thin film," Journal of Nanophotonics 13(3), 036001 (3 July 2019). https://doi.org/10.1117/1.JNP.13.036001

Received: 26 March 2019; Accepted: 18 June 2019; Published: 3 July 2019

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