Tunable optical nonlinearity for transition metal dichalcogenide polaritons dressed by a Fermi sea
V. Shahnazaryan,V. Shahnazaryan,V. K. Kozin,V. K. Kozin,Ivan A. Shelykh,Ivan A. Shelykh,Ivan Iorsh,Oleksandr Kyriienko +7 more
TLDR
In this paper, a quantitative theory of the nonlinear optical response for exciton-polaritons for the case of a doped transition metal dichalcogenide (TMD) monolayer was presented.Abstract:
We study the system of a transition metal dichalcogenide (TMD) monolayer placed in an optical resonator, where the strong light-matter coupling between excitons and photons is achieved. We present a quantitative theory of the nonlinear optical response for exciton-polaritons for the case of a doped TMD monolayer, and analyze in detail two sources of nonlinearity. The first nonlinear response contribution stems from the Coulomb exchange interaction between excitons. The second contribution comes from the reduction of Rabi splitting that originates from phase space filling at increased exciton concentration and the composite nature of excitons. We demonstrate that both nonlinear contributions are enhanced in the presence of free electrons. As free electron concentration can be routinely controlled by an externally applied gate voltage, this opens a way of electrical tuning of the nonlinear optical response.read more
Citations
More filters
Journal ArticleDOI
Interacting plexcitons for designed ultrafast optical nonlinearity in a monolayer semiconductor
TL;DR: In this article , a class of peculiar polaritons, named plasmon-exciton polariton (plexcitons), are explored in a hybrid system composed of silver nanodisk arrays and monolayer tungsten-disulfide (WS 2 ), which shows giant room-temperature nonlinearity due to their deep-subwavelength localized nature.
Journal ArticleDOI
Interacting plexcitons for designed ultrafast optical nonlinearity in a monolayer semiconductor
TL;DR: In this article , a class of peculiar polaritons, named plasmon-exciton polariton (plexcitons), are explored in a hybrid system composed of silver nanodisk arrays and monolayer tungsten-disulfide (WS 2 ), which shows giant room-temperature nonlinearity due to their deep-subwavelength localized nature.
Journal ArticleDOI
Tunable exciton-polaritons emerging from WS2 monolayer excitons in a photonic lattice at room temperature
L. Lackner,Marco Dusel,Oleg A. Egorov,Bo Han,Heiko Knopf,Falk Eilenberger,Falk Eilenberger,Sven Schröder,Kazuyuki Watanabe,T. Taniguchi,Sefaattin Tongay,Carlos Antón-Solanas,Sven Höfling,C. Schneider,C. Schneider +14 more
TL;DR: In this paper, the authors demonstrate lattice polaritons, based on an open, high-quality optical cavity, with an imprinted photonic lattice strongly coupled to excitons in a WS2 monolayer.
Journal ArticleDOI
Klein tunneling of optically tunable Dirac particles with elliptical dispersions
Andrii Iurov,Liubov Zhemchuzhna,Paula Fekete,Godfrey Gumbs,Godfrey Gumbs,Danhong Huang,Danhong Huang +6 more
TL;DR: In this article, the asymmetrical Klein paradox with a finite incidence angle induced by an external linearly polarized dressing field for graphene and a dice lattice was shown to be true.
Journal ArticleDOI
Exciton-Trion Polaritons in Doped Two-Dimensional Semiconductors.
TL;DR: A many-body theory of exciton-trion polaritons (ETPs) in doped two-dimensional semiconductor materials is presented to enable novel electrical and optical control of ETPs.
References
More filters
Journal ArticleDOI
Atomically thin MoS2: a new direct-gap semiconductor
TL;DR: The electronic properties of ultrathin crystals of molybdenum disulfide consisting of N=1,2,…,6 S-Mo-S monolayers have been investigated by optical spectroscopy and the effect of quantum confinement on the material's electronic structure is traced.
Journal ArticleDOI
Bose-Einstein condensation of exciton polaritons
Jacek Kasprzak,Maxime Richard,S. Kundermann,A. Baas,P. Jeambrun,Jonathan Keeling,Francesca Maria Marchetti,Marzena H. Szymańska,Régis André,Jl Staehli,Vincenzo Savona,Peter B. Littlewood,Benoit Deveaud,Le Si Dang +13 more
TL;DR: A comprehensive set of experiments giving compelling evidence for BEC of polaritons of bosonic quasi-particles are detailed, which indicate the spontaneous onset of a macroscopic quantum phase.
Journal ArticleDOI
Tightly bound trions in monolayer MoS2
TL;DR: The spectroscopic identification in a monolayer MoS(2) field-effect transistor of tightly bound negative trions, a quasiparticle composed of two electrons and a hole is reported, which has no analogue in conventional semiconductors.
Journal ArticleDOI
Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS 2
Alexey Chernikov,Timothy C. Berkelbach,Heather M. Hill,Albert F. Rigosi,Yilei Li,Ozgur Burak Aslan,David R. Reichman,Mark S. Hybertsen,Tony F. Heinz +8 more
TL;DR: Strong but unconventional electron-hole interactions are expected to be ubiquitous in atomically thin materials using a microscopic theory in which the nonlocal nature of the effective dielectric screening modifies the functional form of the Coulomb interaction.
Journal ArticleDOI
Observation of tightly bound trions in monolayer MoS2
TL;DR: In this paper, a quasi-particle composed of two electrons and a hole was identified in doped monolayer MoS2, which can be created with valley and spin polarized holes.