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Properties of graphene plasmons are greatly affected by their coupling to phonons. While such coupling has been routinely observed in both near-field and far-field graphene spectroscopy, the interplay between coupling strength and mode…

Mesoscale and Nanoscale Physics · Physics 2026-04-08 Sang Hyun Park , Shengxuan Xia , Sang-Hyun Oh , Phaedon Avouris , Tony Low

Recent experiments have demonstrated that light and matter can mix together to an extreme degree, and previously uncharted regimes of light-matter interactions are currently being explored in a variety of settings. The so-called ultrastrong…

Quantum Physics · Physics 2019-06-19 P. Forn-Díaz , L. Lamata , E. Rico , J. Kono , E. Solano

Statistical studies of galaxy-galaxy interactions often utilise net change in physical properties of progenitors as a function of the separation between their nuclei to trace both the strength and the observable timescale of their…

Metallic nanoparticles can localize the incident light to hotspots as plasmon oscillations, where the intensity can be increased up to four orders of magnitude. Even though the lifetime of plasmons are typically short, it can be increased…

Optics · Physics 2020-01-22 Bilge Can Yildiz , Alpan Bek , Mehmet Emre Tasgin

We investigate the dynamics of a plasmonic oscillation over a metal nanoparticle when it is strongly coupled to a quantum emitter (e.g. quantum dot, molecule). We simulate the density matrix evolution for a simple model; coupled…

Optics · Physics 2013-08-27 Mehmet Emre Tasgin

We demonstrate the strong coupling of direct transition excitons in tungsten disulfide (WS2) with collective plasmonic resonances at room temperature. We use open plasmonic cavities formed by periodic arrays of metallic nanoparticles. We…

With the continuous emergence of molecular and cluster devices or systems, the relationship between the plasmonic properties of multiple clusters and molecular interactions and the properties of the original single cluster or molecule…

Mesoscale and Nanoscale Physics · Physics 2022-01-05 Nan Gao , Guodong Zhu , Yingzhou Huang , Yurui Fang

We propose a method that enables strong, coherent coupling between individual optical emitters and electromagnetic excitations in conducting nano-structures. The excitations are optical plasmons that can be localized to sub-wavelength…

Quantum Physics · Physics 2009-11-13 D. E. Chang , A. S. Sorensen , P. R. Hemmer , M. D. Lukin

We demonstrate coherent one-color photoassociation of a Bose-Einstein condensate, which results in Rabi oscillations between atomic and molecular condensates. We attain atom-molecule Rabi frequencies that are comparable to decoherence rates…

Atomic Physics · Physics 2013-10-11 Mi Yan , B. J. DeSalvo , Ying Huang , P. Naidon , T. C. Killian

In most theoretical descriptions of collective strong coupling of organic molecules to a cavity mode, the molecules are modeled as simple two-level systems. This picture fails to describe the rich structure provided by their internal…

Quantum Physics · Physics 2015-11-11 Javier Galego , Francisco J. Garcia-Vidal , Johannes Feist

We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the…

The strong coupling of a dense layer of molecular excitons with surface-plasmon modes in a metal gives rise to polaritons (hybrid light-matter states) called plexcitons. Surface plasmons cannot directly emit into (or be excited by)…

Mesoscale and Nanoscale Physics · Physics 2018-09-28 Joel Yuen-Zhou , Semion K. Saikin , Vinod M. Menon

We investigate theoretically the effects of interaction between an optical dipole (semiconductor quantum dot or molecule) and metal nanoparticles. The calculated absorption spectra of hybrid structures demonstrate strong effects of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Jie-Yun Yan , Wei Zhang , Suqing Duan , Xian-Geng Zhao , Alexander O. Govorov

Strong light-matter interactions facilitate not only emerging applications in quantum and non-linear optics but also modifications of materials properties. In particular the latter possibility has spurred the development of advanced…

Mesoscale and Nanoscale Physics · Physics 2021-08-17 Jakub Fojt , Tuomas P. Rossi , Tomasz J. Antosiewicz , Mikael Kuisma , Paul Erhart

We present an analytical model describing the transition to strong coupling regime for an ensemble of emitters resonantly coupled to a localized surface plasmon in a metal-dielectric structure. The response of a hybrid system to an external…

Optics · Physics 2025-06-26 Zoe Scott , Shafi Muhammad , Tigran V. Shahbazyan

Plasmonic nanocavities enable access to the quantum properties of matter, but are often simplified to single mode models despite their complex multimode structure. Here, we show that off-resonant plasmonic modes in fact play a crucial role…

Quantum Physics · Physics 2024-11-13 Angus Crookes , Ben Yuen , Angela Demetriadou

Strong cavity coupling of gas-phase molecules will enable studies of benchmark chemical processes under strong light-matter interactions with a high level of experimental control and no solvent effects. We recently demonstrated the…

Chemical Physics · Physics 2023-10-26 Adam D. Wright , Jane C. Nelson , Marissa L. Weichman

Plasmon hybridization between closely spaced nanoparticles yields new hybrid modes not found in individual constituents, allowing for the engineering of resonance properties and field enhancement capabilities of metallic nanostructure.…

Optics · Physics 2016-10-13 Jingjing Zhang , Zhen Liao , Yu Luo , Xiaopeng Shen , Stefan A. Maier , Tie Jun Cui

We study theoretically optical response of WS2 monolayer located near periodic metal nanostructured arrays in two and three dimensions. The emphasis of simulations is on the strong coupling regime of excitons supported by WS2 and surface…

Mesoscale and Nanoscale Physics · Physics 2018-04-04 Maxim Sukharev , Ruth Pachter

Multi-normal-mode splitting peaks are experimentally observed in a system with Doppler-broadened two-level atoms inside a relatively long optical cavity. In this system, the atoms-cavity interaction can reach the ``superstrong coupling"…

Quantum Physics · Physics 2015-05-13 Xudong Yu , Dezhi Xiong , Haixia Chen , Pengjun Wang , Min Xiao , Jing Zhang