We study theoretically the optical response of a monolayer comprizing regularly spaced quantum emitters with a doublet in the ground state (the so-called $Λ$-emitters). The emitters' self-action through the retarded dipole-dipole interaction provides a positive feedback, interplay of which with the intrinsic nonlinearity of an isolated emitter, leads to an exotic optical dynamics of the system and prominent effects, such as multistability, self-oscillations, and quasi-chaotic behavior. %The bifurcation diagram approach is used to classify different scenarios of the system's behavior. In a certain spectral domain, the monolayer operates as a bistable mirror. The optical response of the monolayer manifests high sensitivity to the doublet splitting and relaxation within the doublet, suggesting the latter to be the key parameters to tailor the monolayer optical response. These properties make such a system very promising for nanophotonic applications. We discuss the relevance of the predicted nonlinear effects for nano-sized all-optical devices.
Dicke Superradiance in Extended 2D Quantum Arrays Coupled to Metasurface Bound States in the Continuum
University of Manchester（曼彻斯特大学）；Newcastle University（纽卡斯尔大学）；A*STAR (Agency for Science, Technology and Research)（新加坡科技研究局）；Consejo Superior de Investigaciones Científicas（西班牙高等科学研究委员会）
Long-range quantum emitter interactions mediated by a non-local metasurface: Application to qubit-qubit entanglement
The University of Manchester（曼彻斯特大学）；Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR)（材料研究与工程研究所（新加坡科技研究局））；University of Fribourg（弗里堡大学）；Universidad de Castilla-La Mancha（卡斯蒂利亚-拉曼恰大学）；Newcastle University（纽卡斯尔大学）
Thermal hot-carrier breakdown in metasurface structures based on coplanar arrays of graphene microribbons connected with wide-gap bridges
Tohoku University（东北大学）；University of Aizu（会津大学）；Electronics of the Future, Inc.（未来电子公司）；Rensselaer Polytechnic Institute（伦斯勒理工学院）；Center of Excellence ENSEMBLE3 Ltd.（ENSEMBLE3卓越中心有限公司）；Polish Academy of Sciences（波兰科学院）
University of Southern Denmark（南丹麦大学）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；L.F. Vereshchagin Institute for High Pressure Physics, Russian Academy of Sciences（俄罗斯科学院L.F.韦列夏金高压物理研究所）；GREMAN, CNRS, UMR 7347, INSA CVL, Université de Tours（图尔大学GREMAN实验室）
Simultaneous anti-bunched and super-bunched photons from a GaAs Quantum dot in a dielectric metasurface
Sandia National Laboratories（桑迪亚国家实验室）；Center for Integrated Nanotechnologies, Sandia National Lab（桑迪亚国家实验室集成纳米技术中心）；University College London（伦敦大学学院）；Department of Electrical and Computer Engineering, University of Oklahoma（俄克拉荷马大学电气与计算机工程系）；Center for High Technology Materials, University of New Mexico（新墨西哥大学高技术材料中心）
