TY - JOUR
T1 - 3d zeros in electromagnetic fields
AU - Vernon, Alex
AU - Dennis, Mark
AU - Rodriguez Fortuno, Francisco
PY - 2023/9/19
Y1 - 2023/9/19
N2 - We present a study of 3D electromagnetic field zeros, uncovering their remarkable characteristic features and propose a classifying framework. These are a special case of general dark spots in optical fields, which sculpt light's spatial structure into matter-moving, information-rich vortices, escape the diffraction limit for single-molecule imaging, and can trap particles for nanoscale manipulation. Conventional dark spots are two-dimensional in two aspects: localised in a plane and having a non-zero out-of-plane field component. We focus on non-paraxial fields, where three-dimensional dark spots can exist non-stably at fully localised points, making distinct imprints in the flux of energy and momentum, and in the light’s polarization texture. With this work, we hope to enhance current dark spot applications, or inspire new ones impossible with lower-dimensional zeros.
AB - We present a study of 3D electromagnetic field zeros, uncovering their remarkable characteristic features and propose a classifying framework. These are a special case of general dark spots in optical fields, which sculpt light's spatial structure into matter-moving, information-rich vortices, escape the diffraction limit for single-molecule imaging, and can trap particles for nanoscale manipulation. Conventional dark spots are two-dimensional in two aspects: localised in a plane and having a non-zero out-of-plane field component. We focus on non-paraxial fields, where three-dimensional dark spots can exist non-stably at fully localised points, making distinct imprints in the flux of energy and momentum, and in the light’s polarization texture. With this work, we hope to enhance current dark spot applications, or inspire new ones impossible with lower-dimensional zeros.
M3 - Article
SN - 2334-2536
JO - Optica
JF - Optica
ER -