Abstract

We establish a method to determine the spectral coherence Stokes parameters of a random three-component optical field via scattering by two dipolar nanoparticles. We show that measuring the intensity and polarization-state fringes of the scattered far field in three directions allows us to construct all nine coherence Stokes parameters at the dipoles. The method extends current nanoprobe techniques to detection of the spatial coherence of random light with arbitrary three-dimensional polarization structure.

© 2022 Optica Publishing Group

Detection of electromagnetic degree of coherence with nanoscatterers: comparison with Young’s interferometer

Lasse-Petteri Leppänen, Kimmo Saastamoinen, Ari T. Friberg, and Tero Setälä
Opt. Lett. 40(12) 2898-2901 (2015)

Singular-value decomposition and electromagnetic coherence of optical beams

Meilan Luo, Jyrki Laatikainen, Ari T. Friberg, Olga Korotkova, and Tero Setälä
Opt. Lett. 47(20) 5337-5340 (2022)

Cross-spectral purity of the Stokes parameters in random nonstationary electromagnetic beams

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Opt. Lett. 48(21) 5823-5826 (2023)

Generation of a higher-order Poincaré sphere beam array with spatial coherence engineering

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Generation and electromagnetic coherence of unpolarized three-component light fields

Andreas Norrman, Tero Setälä, and Ari T. Friberg
Opt. Lett. 40(22) 5216-5219 (2015)