4 papers
All-optical programming of polarization singularities in a photonic-crystal laser
Abhishek Padhy, Zhiyi Yuan, Mohammed Hamdad +11
Singular optics has emerged as an important research area with diverse applications, yet controlling optical singularities in nanophotonic emitters remains largely constrained by t…
Berry Monopole Scattering in the Synthetic Momentum Space of a Bilayer Photonic Crystal Slab
Ngoc Duc Le, D. -H. -Minh Nguyen, Dung Xuan Nguyen +2
Berry monopoles-quantized sources of Berry curvature-are fundamental to topological phases, yet their scattering remains unexplored. Here, we report for the first time the adiabati…
Breakdown of Bulk-Radiation Correspondence in Radiative Photonic Lattices
Xinyi Yuan, Loïc Malgrey, Helgi Sigurðsson +2
The topological characteristics of energy bands in crystalline systems are encapsulated in the Berry curvature of the bulk Bloch states. In photonic crystal slabs, far-field emissi…
Shaping Bulk Fermi Arcs in the Momentum Space of Photonic Crystal Slabs
Luigi Frau, Simone Zanotti, Lydie Ferrier +2
Exceptional points (EPs) are special spectral degeneracies of non-Hermitian operators: at the EP, the complex eigenvalues coalesce, i.e., they become degenerate in both their real…