3 papers
physics.optics2025
Broadband and wide-angle beam deflection enabled by dynamically reconfigurable meta-arrays
Koffi-Emmanuel Sadzi, Abdoulaye Ndao
We present a structurally simple yet functionally ver- satile reflective meta-array composed of phase-change Antimony trisulfide (Sb2S3) nanorods enabling broad- band and wide-angl…
physics.app-ph2024
Loss vs Magnetization Threshold Phenomenon for Lorentz Nonreciprocity Induced by a Gyrotropic Particle Inside a Cavity
Koffi-Emmanuel Sadzi, Yakir Hadad
When a plasmonic particle is subject to a static magnetic field, , its gyrotropic response gives rise to nonreciprocal dynamics of the entire ambient su…
physics.app-ph2024
Exact Local-Field Renormalization for Deep-Subwavelength Particles in Rectangular Cavities
Koffi-Emmanuel Sadzi, Yakir Hadad
We present a rigorous, semi-analytical framework for predicting the eigenfrequencies of a deep-subwavelength particle embedded in a perfectly conducting rectangular cavity. The for…