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Exciton-polaritons provide a versatile platform for the study of a wide range of phenomena, including polariton lasers, topological polaritons, and bosonic condensation. Transition metal dichalcogenide monolayers host excitons with large…

Mesoscale and Nanoscale Physics · Physics 2026-05-15 Lukas Krelle , Lukas Husel , Kenji Watanabe , Takashi Taniguchi , Ismail Bilgin , Alexander Högele , Farsane Tabataba-Vakili

The strong Coulomb interaction between massless Dirac fermions can drive a semimetal-insulator transition in single-layer graphene by dynamically generating an excitonic fermion gap. There is a critical interaction strength $\lambda_c$ that…

Strongly Correlated Electrons · Physics 2015-03-13 Wei Li , Guo-Zhu Liu

We demonstrate strong exciton-plasmon coupling in silver nanodisk arrays integrated with monolayer MoS2 via angle-resolved reflectance microscopy spectra of the coupled system. Strong exciton-plasmon coupling is observed with the…

Materials Science · Physics 2016-04-20 Wenjing Liu , Bumsu Lee , Carl H. Naylor , Ho-Seok Ee , Joohee Park , A. T. Charlie Johnson , Ritesh Agarwal

The strong coherent coupling of quantum emitters to vacuum fluctuations of the light field offers opportunities for manipulating the optical and transport properties of nanomaterials, with potential applications ranging from ultrasensitive…

We develop a microscopic description of an electron-doped two-dimensional semiconductor embedded in a microcavity. Specifically, we investigate the interactions between exciton-polaritons and electrons for the case where the interactions…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Guangyao Li , Olivier Bleu , Jesper Levinsen , Meera M. Parish

Graphene has emerged as a promising platform to bring nonlinear quantum optics to the nanoscale, where a large intrinsic optical nonlinearity enables long-lived and actively tunable plasmon polaritons to strongly interact. Here we…

Coherent energy exchange between plasmons and excitons is a phenomenon that arises in the strong coupling regime resulting in distinct hybrid states. The DNA-origami technique provides an ideal framework to custom-tune plasmon-exciton…

Mesoscale and Nanoscale Physics · Physics 2017-04-18 Eva-Maria Roller , Christos Argyropoulos , Alexander Högele , Tim Liedl , Mauricio Pilo-Pais

We consider a hybrid structure formed by graphene and an insulating antiferromagnet, separated by a dielectric of thickness up to $d\simeq 500 \,nm$. When uncoupled, both graphene and the antiferromagnetic surface host their own polariton…

Mesoscale and Nanoscale Physics · Physics 2019-10-28 Y. V. Bludov , J. N. Gomes , G. A. Farias , J. Fernández-Rossier , M. I. Vasilevskiy , N. M. R. Peres

This study investigated the hybridization between an axion and plasmon polariton, attributed to the coupling achieved by combining modified electrodynamics and hydrodynamic approaches on a plasmon-polariton in a graphene periodic structure.…

High Energy Physics - Phenomenology · Physics 2022-10-25 Liu Daqing , Hua Xiuqin , Sun Dong , Jiang Xingfang , Zhao Xiang

Various properties of interlayer excitons in double-layer transition metal dichalcogenides quantum dots are analyzed using a low-energy effective Hamiltonian with Coulomb interaction. We solve the single-particle Hamiltonian with and…

Mesoscale and Nanoscale Physics · Physics 2024-08-15 Xiang Liu , Zheng Tao , Wenchen Luo , Tapash Chakraborty

Excitons are pairs of electrons and holes bound together by the Coulomb interaction. At low temperatures, excitons can form a Bose-Einstein condensate (BEC), enabling macroscopic phase coherence and superfluidity. An electronic double layer…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Xiaomeng Liu , Kenji Watanabe , Takashi Taniguchi , Bertrand I. Halperin , Philip Kim

Light-matter interactions in solid-state systems have attracted considerable interest in recent years. Here, we report on a room-temperature study on the interaction of tungsten disulfide (WS$_2$) monolayer excitons with a hybrid plasmon…

Mesoscale and Nanoscale Physics · Physics 2023-09-08 Yuhao Zhang , Hans-Joachim Schill , Stephan Irsen , Stefan Linden

The interplay between strong light-matter interactions and charge doping represents an important frontier in the pursuit of exotic many-body physics and optoelectronics. Here, we consider a simplified model of a two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Guangyao Li , Olivier Bleu , Meera M. Parish , Jesper Levinsen

We report the observation of band gaps for low loss exciton-polaritons propagating outside the light cone in GaAs-based planar waveguides patterned into two-dimensional photonic crystals. By etching square lattice arrays of shallow holes…

The resonant interaction between quasi-one dimensional excitons and photons is investigated. For a single isolated organic quantum wire, embedded in its single crystal monomer matrix, the strong exciton-photon coupling regime is reached.…

Strongly Correlated Electrons · Physics 2009-11-11 F. Dubin , J. Berrehar , R. Grousson , M. Schott , V. Voliotis

Numerical and closed-form analytic expressions for plasmon dispersion relations and rates of dissipation are first obtained at finite-temperatures for free-standing gapped graphene. These closed-system results are generalized to an open…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 Andrii Iurov , Godfrey Gumbs , Danhong Huang , V. M. Silkin

We report on strong coupling between surface plasmon polaritons (SPP) and Rhodamine 6G (R6G) molecules, with double vacuum Rabi splitting energies up to 230 and 110 meV. In addition, we demonstrate the emission of all three energy branches…

We investigate the impact that light-forbidden exciton transitions have in the near-field population dynamics and far-field scattering spectrum of hybrid plasmon-emitter systems. Specifically, we consider a V-type quantum emitter,…

Mesoscale and Nanoscale Physics · Physics 2018-03-14 A. Cuartero-González , A. I. Fernández-Domínguez

Graphene plasmons promise exciting nanophotonic and optoelectronic applications. Owing to their extremely short wavelengths, however, the efficient coupling of photons to graphene plasmons - critical for the development of future devices -…

Optics · Physics 2018-05-10 A. Y. Nikitin , P. Alonso-Gonzalez , R. Hillenbrand

We analyse the interaction of exciton and exciton-polariton condensates in semiconductor microcavity with a coherent acoustic wave. An analytical solution for the dispersion of excitations of coupled condensate-phonon system is found in the…

Materials Science · Physics 2015-05-27 D. V. Vishnevsky , N. A. Gippius , I. A. Shelykh , D. D. Solnyshkov , G. Malpuech
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