Study of the polarization mode by reflection under the excitation of the superficial polariton plasmon on the prism structure

• Published in: Optics communications Vol. 478; p. 126403
• Main Authors: Sánchez-Hernández, H.H., Pérez-Abarca, J.M., Cruz-Félix, A.S., Santiago-Alvarado, A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2021
• Subjects: Ellipsometry; Polarization; Surface plasmon; Surface plasmon; Polarization; Ellipsometry
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2020.126403

Optical sensors based on surface plasmon resonance are widely used in several applications. The structure to obtain the resulting polarization in the resonance of the surface plasmon in the Kretschmann configuration was investigated, a silver film acts as coating, in addition there is a dielectric layer which is deposited on the silver film, water is also used as substrate, using a source of λ=633 nm. The resulting polarization change is shown according to the amplitudes-Ψ and the phases-Δ of the resulting wave associated with the ellipsometry function, on these functions there are remarkable points for each incident angle, which represent features such as suppressors, aligners and retarders. •The Kretschmann configuration Surface Plasmon Resonance performs multiple functions.•The resulting polarization change is shown according to the amplitudes-Ψ and the phases-Δ.•Different signals of the polarized light can be collected for a specific incident angle.•Thin dielectric layer enables to perform functions such as including retarders, aligners and suppressors.