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We explore theoretically how nonlocal corrections in the description of the metal affect the strong coupling between excitons and plasmons in typical examples where nonlocal effects are anticipated to be strong, namely small metallic…

Mesoscale and Nanoscale Physics · Physics 2018-01-18 Christos Tserkezis , Martijn Wubs , N. Asger Mortensen

Strong light-matter interactions between resonantly coupled metal plasmons and spin decoupled bright excitons from two dimensional (2D) transition metal dichalcogenides (TMDs) can produce discrete spin-resolved exciton-plasmon polariton…

Mesoscale and Nanoscale Physics · Physics 2019-09-13 Rup Kumar Chowdhury , Prasanta Kumar Datta , Shivakiran Bhaktha BN , Samit Kumar Ray

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

The near-field interaction due to a strong electromagnetic field induced by resonant localized plasmons can result in a strong coupling of excitonic states or formation of hybrid exciton-plasmon modes in quantum confined structures. This…

Mesoscale and Nanoscale Physics · Physics 2019-04-01 Yuba Poudel , Gary N. Lim , Mojtaba Moazzezi , Zachariah Hennighausen , Yuri Rostovtsev , Francis DSouza , Swastik Kar , Arup Neogi

We investigate the dynamics of photon echo exhibited by exciton-plasmon systems under strong coupling conditions. Using a self-consistent model based on coupled Maxwell-Bloch equations we investigate femtosecond time dynamics of ensembles…

Mesoscale and Nanoscale Physics · Physics 2017-04-05 Adam Blake , Maxim Sukharev

Active control of light-matter interactions in semiconductors is critical for realizing next generation optoelectronic devices, with tunable control of the systems optical properties via external fields. The ability to manipulate optical…

Monolayer transition metal dichalcogenides feature tightly bound bright excitons at the degenerate valleys, where electron-hole Coulomb exchange interaction strongly couples the valley pseudospin to the momentum of exciton. Placed on…

Mesoscale and Nanoscale Physics · Physics 2022-06-01 Xu-Chen Yang , Hongyi Yu , Wang Yao

The interaction potential of a two-dimensional system of excitons with spatially separated electron-hole layers is considered in the strong magnetic field limit. The excitons are assumed to have free dynamics in the $x$-$y$ plane, while…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 M. A. Olivares-Robles , S. E. Ulloa

Exciton-surface plasmon coupling is at the heart of the most elementary light-matter interactions and is a result of not only an intrinsic property of the emitter but that of emitter-environment interaction. Thus, change of electromagnetic…

Optics · Physics 2022-03-11 J. S. Duan

We use a configuration interaction approach within the envelope function approximation to study the nature of the excitonic resonance in nano-hybrids, composite nanoparticles (NPs) combining a semiconducting and a metallic segment in…

Mesoscale and Nanoscale Physics · Physics 2011-07-25 Juan I. Climente , Jose L. Movilla , Guido Goldoni , Josep Planelles

Solid state cavity quantum electrodynamics is a rapidly advancing field which explores the frontiers of light-matter coupling. Plasmonic approaches are of particular interest in this field, since they carry the potential to squeeze optical…

Strongly coupled plasmon-exciton systems offer promising applications in nanooptics. The classification of the coupling regime is currently debated both from experimental and theoretical perspectives. We present a method to unambiguously…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 Felix Stete , Wouter Koopman , Matias Bargheer

The realization and control of polaritons is of paramount importance in the prospect of novel photonic devices. Here, we investigate the emergence of plasmon-exciton polaritons in hybrid structures consisting of a two-dimensional (2D)…

Mesoscale and Nanoscale Physics · Physics 2018-01-10 P. A. D. Gonçalves , L. P. Bertelsen , Sanshui Xiao , N. Asger Mortensen

This review provides a brief introduction to the physics of coupled exciton-plasmon systems, the theoretical description and experimental manifestation of such phenomena, followed by an account of the state-of-the-art methodology for the…

Mesoscale and Nanoscale Physics · Physics 2017-10-25 Maxim Sukharev , Abraham Nitzan

We study theoretically the interactions of excitonic states with surface electromagnetic modes of small-diameter (~1 nm) semiconducting single-walled carbon nanotubes. We show that these interactions can result in strong…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 I. V. Bondarev , K. Tatur , L. M. Woods

We consider the effect of electromagnetic coupling between localized surface plasmons in a metallic nanoparticle (NP) and excitons or weakly interacting electron-hole pairs in a semiconductor matrix where the NP is embedded. An expression…

Mesoscale and Nanoscale Physics · Physics 2018-10-08 Rui M. S. Pereira , Joel Borges , Georgui V. Smirnov , Filipe Vaz , Mikhail I. Vasilevskiy

Strong coupling of two-dimensional semiconductor excitons with plasmonic resonators enables control of light-matter interaction at the subwavelength scale. Here we develop strong coupling in plasmonic nano-gap resonators that allow…

Monolayer semiconductors, given their thickness at the atomic scale, present unique electrostatic environments due to the sharp interfaces between the semiconductor film and surrounding materials. These interfaces significantly impact both…

Mesoscale and Nanoscale Physics · Physics 2026-05-22 Kelly Y. Muñoz-Gómez , Hanz Y. Ramírez-Gómez

We demonstrate that soliton-plasmon bound states appear naturally as propagating eigenmodes of nonlinear Maxwell's equations for a metal/dielectric/Kerr interface. By means of a variational method, we give an explicit and simplified…

We investigate the conditions yielding plasmon-exciton strong coupling at the single emitter level in the gap between two metal nanoparticles. A quasi-analytical transformation optics approach is developed that makes possible a thorough…

Mesoscale and Nanoscale Physics · Physics 2016-09-07 Rui-Qi Li , D. Hernangómez-Pérez , F. J. García-Vidal , A. I. Fernández-Domínguez