Explanipedia

Gratings weave coherence carpets with non-diffracting coherence strands Open

Taco D. Visser, HF Schouten · 2025

When a spatially partially coherent optical field is transmitted by a grating, its two-point correlation function is found to show an intriguing behavior: it propagates along discrete diffraction orders and, with increasing coherence, grad…

Scattering of partially coherent electromagnetic beams by a sphere Open

Hugo F. Schouten, Taco D. Visser · 2024

We examine the scattering of a partially coherent, partially polarized electromagnetic beam by a homogeneous sphere (Mie scattering). The degree of polarization and the Stokes parameters in the far zone are found to be strongly dependent o…

Collapse and revival of spatial coherence on free-space propagation Open

Hugo F. Schouten, David G. Fischer, Taco D. Visser · 2021

We demonstrate analytically and numerically that the transverse spatial coherence (the spectral degree of coherence) of the field radiated by two partially correlated electromagnetic sources oscillates as a function of propagation distance…

Dynamic control of optical transmission through a nano-slit using surface plasmons Open

Salman Daniel, Kimmo Saastamoinen, Toni Saastamoinen, Jussi Rahomäki, Ari T. Friberg , et al. · 2015

We demonstrate how the optical transmission by a directly illuminated, sub-wavelength slit in a metal film can be dynamically controlled by varying the incident beam's phase relative to that of a stream of surface plasmon polaritions which…

Creating and Controlling Polarization Singularities in Plasmonic Fields Open

Anouk de Hoogh, L. Kuipers, Taco D. Visser, Nir Rotenberg · 2015

Nanoscale light fields near nanoplasmonic objects can be highly structured and can contain highly-subwavelength features. Here, we present the results of our search for the simplest plasmonic system that contains, and can be used to contro…

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