Leveraging beam deformation to improve the detection of resonances
Optics
2016-12-07 v1 Quantum Physics
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 three. We provide theoretical tools to deal with this effect, and a thorough physical discussion that leads to expect similar phenomenon to occur for temporal wavepackets and in other domains of physics.
Keywords
Cite
@article{arxiv.1609.08473,
title = {Leveraging beam deformation to improve the detection of resonances},
author = {Rémi Pollès and Martine Mihailovic and Emmanuel Centeno and Antoine Moreau},
journal= {arXiv preprint arXiv:1609.08473},
year = {2016}
}