2 papers
physics.optics2026
Dual-Symmetrized Construction of Electromagnetic Beams Beyond the Paraxial Approximation with an Explicit Separation of Scalar and Vectorial Corrections
Abdullah F. Alharbi, Kayn A. Forbes
We develop a perturbative framework for constructing the fields of electromagnetic beams beyond the paraxial approximation, in which the vectorial correction is shared symmetricall…
physics.optics2026
Transversality Locks Longitudinal Gradients in Structured-Light Quadrupole Transitions
Kayn A. Forbes, Dale Green, Abdullah F. Alharbi +1
Electric quadrupole absorption is driven by optical field gradients, not by field amplitudes alone. This distinction is crucial for structured light, where a paraxially small longi…