Maximum helical dichroism enabled by an exceptional point in non-Hermitian gradient metasurfaces
Xiao Li, Chuanjie Hu, Yuan Tian, Youwen Liu, Huanyang Chen, Yadong Xu, Ming‐Hui Lu, Yangyang Fu
Topics & Concepts
Circular dichroismChirality (physics)PhysicsHermitian matrixVortexTopology (electrical circuits)Optical vortexCoupling (piping)Angular momentumClassical mechanicsQuantum mechanicsMaterials scienceChiral anomalyCrystallographyMathematicsChemistryFermionMetallurgyThermodynamicsNambu–Jona-Lasinio modelCombinatoricsMetamaterials and Metasurfaces ApplicationsOrbital Angular Momentum in OpticsQuantum Mechanics and Non-Hermitian Physics