Influence of the Local Scattering Environment on the Localization Precision of Single Particles

We study the fundamental limit on the localization precision for a subwavelength scatterer embedded in a strongly scattering environment, using the external degrees of freedom provided by wavefront shaping. For a weakly scattering target, the localization precision improves with the value of the loc...

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Bibliographic Details
Published in:Physical review letters 2020-04, Vol.124 (13), p.133903-133903, Article 133903
Main Authors: Bouchet, Dorian, Carminati, Rémi, Mosk, Allard P
Format: Article
Language:English
Subjects:
Localization
Scattering
Wave fronts
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Summary:We study the fundamental limit on the localization precision for a subwavelength scatterer embedded in a strongly scattering environment, using the external degrees of freedom provided by wavefront shaping. For a weakly scattering target, the localization precision improves with the value of the local density of states at the target position. For a strongly scattering target, the localization precision depends on the dressed polarizability that includes the backaction of the environment. This numerical study provides new insights for the control of the information content of scattered light by wavefront shaping, with potential applications in sensing, imaging, and nanoscale engineering.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.124.133903