Excitation of the broadband surface plasmon polaritons in planar metal-dielectric structures

Roman A. Pavelkin

doi:10.1117/12.2623149

29 April 2022 Excitation of the broadband surface plasmon polaritons in planar metal-dielectric structures

Roman A. Pavelkin

Proceedings Volume 12193, Laser Physics, Photonic Technologies, and Molecular Modeling; 121930A (2022) https://doi.org/10.1117/12.2623149
Event: XXV Annual Conference Saratov Fall Meeting 2021; and IX Symposium on Optics and Biophotonics, 2021, Saratov, Russian Federation

Abstract

Plasmon biosensors, platforms for the surface enhanced Raman spectroscopy and for surface enhancement of fluorescent signals, and other devices operating on the basis of planar plasmon structures have been actively studied and developed in recent years. The next step in the development of such systems may be the utilization of structures optimized for the broadband SPP excitation. This could lead to device dimension reduction and improvement of performance. In this paper, we present a simple model for calculating the spectral response of the planar structure in the Kretschmann configuration in the case of incidence of a polychromatic plane wave. We obtain the attenuated total reflectance spectra of the plasmon structures and demonstrate the broadband surface plasmon polaritons resonance in a wide spectral region from the visible to the middle infrared wavelengths. The results of the present work can be useful in the design of sensors and plasmon spectroscopy devices.

Citation Download Citation

Roman A. Pavelkin "Excitation of the broadband surface plasmon polaritons in planar metal-dielectric structures", Proc. SPIE 12193, Laser Physics, Photonic Technologies, and Molecular Modeling, 121930A (29 April 2022); https://doi.org/10.1117/12.2623149

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KEYWORDS

Plasmons

Aluminum

Surface plasmon polaritons

Visible radiation

Metals

Refractive index

Prisms

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