Leveraging beam deformation to improve the detection of resonances

Rémi Pollès, Martine Mihailovic, Emmanuel Centeno, and Antoine Moreau
Phys. Rev. A 94, 063808 – Published 2 December 2016

Abstract

Decades of work on beam deformation on reflection and especially on lateral shifts have spread the idea that a reflected beam is larger than the incident beam. However, when the right conditions are met, a beam reflected by a multilayered resonant structure can be 10% narrower than the incoming beam. Such an easily measurable change occurs on a very narrow angular range close to a resonance, which can be leveraged to improve the resolution of sensors based on the detection of surface-plasmon resonances by a factor of 3. We provide theoretical tools to deal with this effect and a thorough physical discussion that leads to expect similar phenomena to occur for temporal wave packets and in other domains of physics.

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  • Received 18 January 2016

DOI:https://doi.org/10.1103/PhysRevA.94.063808

©2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalGeneral Physics

Authors & Affiliations

Rémi Pollès, Martine Mihailovic, Emmanuel Centeno, and Antoine Moreau

  • Université Clermont Auvergne, Institut Pascal, Photon-N2, Boîte Postale 10448, F-63000 Clermont-Ferrand, France and CNRS, UMR 6602, Institut Pascal, F-63178 Aubière, France

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Issue

Vol. 94, Iss. 6 — December 2016

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