3 papers
hep-ph2026
Scalar axion field of toroidal electromagnetic pulses
Wangke Yu, Nikitas Papasimakis, Nikolay I. Zheludev +1
Axion electrodynamics extends Maxwell's theory by postulating a hypothetical pseudoscalar axion field sourced by a scalar product of electric and magnetic fields. In this work, we…
physics.optics2025
Absorber of Topologically Structured Light
Luka Vignjevic, Eric Plum, Nikitas Papasimakis +1
Polarization- and wavelength-sensitive absorbers for homogeneous electromagnetic waves are crucial in photovoltaics, imaging and telecommunications. Here, we report on an absorber…
physics.optics2025
State Tomography of Toroidal Light Pulses
Luka Vignjevic, Yijie Shen, Nikitas Papasimakis +1
Toroidal pulses, also known as Focused or Flying Doughnuts (FDs), are few-cycle pulses of doughnut-like topology. Originally proposed by Hellwarth and Nouchi in 1996, they have rec…