Stochastic 3D optical mapping by holographic localization of Brownian scatterers | Zendy

Ariadna Martinez-Marrades | Zendy; Jean-François Rupprecht | Zendy; M. Groß | Zendy; Gilles Tessier | Zendy

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Stochastic 3D optical mapping by holographic localization of Brownian scatterers

Author(s) -

Ariadna Martinez-Marrades,

Jean-François Rupprecht,

M. Groß,

Gilles Tessier

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.029191

Subject(s) - holography , optics , optical tweezers , brownian motion , characterization (materials science) , physics , microscopy , digital holography , computation , evanescent wave , computer science , algorithm , quantum mechanics

We present a wide-field microscopy technique for the 3D mapping of optical intensity distributions using Brownian gold nanopar-ticles as local probes, which are localized by off-axis holography. Fast computation methods allow us to localize hundreds of particles per minute with accuracies as good as 3 × 3 × 10nm³ for immobilized particles. Factors limiting this accuracy are discussed and the possibilities of the technique are illustrated through the 3D optical mapping of an evanescent and a propagative wave. Our results pave the way for a new stochastic imaging technique, well adapted to subwavelength optical characterization in water-based systems.

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