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Engineering light-matter interactions up to the strong-coupling regime at room temperature is one of the cornerstones of modern nanophotonics. Achieving this goal will enable new platforms for potential applications such as quantum…

We propose a framework for inducing strong optomechanical effects in a suspended carbon nanotube based on deformation potential exciton-phonon coupling. The excitons are confined using an inhomogeneous axial electric field which generates…

Mesoscale and Nanoscale Physics · Physics 2012-11-06 I. Wilson-Rae , C. Galland , W. Zwerger , A. Imamoglu

Interactions between quasiparticles are of fundamental importance and ultimately determine the macroscopic properties of quantum matter. A famous example is the phenomenon of superconductivity, which arises from attractive electron-electron…

Optical bound states in the continuum (BIC) allow to totally prevent a photonic mode from radiating into free space along a given spatial direction. Polariton excitations derived from the strong radiation-matter interaction of a BIC with an…

Two-dimensional semiconductors have emerged as a new class of materials for nanophotonics for their strong exciton-photon interaction and flexibility for engineering and integration. Taking advantage of these properties, we engineer an…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Eunice Y. Paik , Long Zhang , G. William Burg , Rahul Gogna , Emanuel Tutuc , Hui Deng

We consider the scenario of excitons in a semiconductor bilayer that are strongly coupled to cavity photons, leading to the formation of dipolar exciton polaritons (dipolaritons). Using a realistic pseudopotential for the dipolar…

Mesoscale and Nanoscale Physics · Physics 2026-02-27 Yasufumi Nakano , Olivier Bleu , Brendan C. Mulkerin , Jesper Levinsen , Meera M. Parish

Atomically thin layered two dimensional (2D) material has provided a rich library for both fundamental research and device applications. One of the special advantages is that, bandgap engineering and controlled material response can be…

Mesoscale and Nanoscale Physics · Physics 2019-12-02 Yuanda Liu , Hanlin Fang , Abdullah Rasmita , Yu Zhou , Juntao Li , Ting Yu , Qihua Xiong , Nikolay Zheludev , Jin Liu , Weibo Gao

Moir\'e superlattices open an unprecedented opportunity for tailoring interactions between quantum particles and their coupling to electromagnetic fields. Strong superlattice potential generates moir\'e minibands of excitons -- bound pairs…

Materials Science · Physics 2020-02-25 Yanhao Tang , Jie Gu , Song Liu , Kenji Watanabe , Takashi Taniguchi , James Hone , Kin Fai Mak , Jie Shan

Spectral control of closely spaced excitonic transitions is central to valleytronic photonics, nanoscale light sources, and wavelength-encoded sensing. In monolayer molybdenum disulfide (MoS2), the A and B excitons are separated by only…

Optics · Physics 2026-05-21 Abdullah Efe Yildiz , Emre Ozan Polat

Plasmonic cavities can confine electromagnetic radiation to deep sub-wavelength regimes. This facilitates strong coupling phenomena to be observed at the limit of individual quantum emitters. Here we report an extensive set of measurements…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 Satyendra Nath Gupta , Ora Bitton , Tomas Neuman , Ruben Esteban , Lev Chuntonov , Javier Aizpurua , Gilad Haran

The plasmon-mediated manipulation of light-matter interaction in two-dimensional atomically transition-metal dichalcogenides (TMDs) critically depends on the design of plasmonic nanostructures to achieve the maximum optical field in TMDs.…

Optics · Physics 2021-12-07 Wei Li , Ming Xin , Wenze Lan , Qinghu Bai , Shuo Du , Gang Wang , Baoli Liu , Changzhi Gu

Tailoring and enhancing the interaction between light and matter is of great importance for both fundamental researches and future photonic and optoelectronic applications. Due to their high exciton oscillator strength and large exciton…

We review the latest theoretical advances in the application of the framework of Transformation Optics for the analytical description of deeply sub-wavelength electromagnetic phenomena. First, we present a general description of the…

Mesoscale and Nanoscale Physics · Physics 2019-08-01 Paloma A. Huidobro , Antonio I. Fernández-Domínguez

In fermionic systems, superconductivity and superfluidity are enabled through the condensation of fermion pairs. The nature of this condensate can be tuned by varying the pairing strength, with weak coupling yielding a BCS-like condensate…

Mesoscale and Nanoscale Physics · Physics 2024-01-05 Xiaomeng Liu , J. I. A. Li , Kenji Watanabe , Takashi Taniguchi , James Hone , Bertrand I. Halperin , Philip Kim , Cory R. Dean

We investigated theoretically the exciton-plasmon coupling effects on the population dynamics and the absorption properties of a hybrid nanosystem composed of a metal nanoparticle (MNP) and a V-type three level semiconductor quantum dot…

We report a new dark exciton in monolayer MoS$_2$ using second harmonic generation spectroscopy. Hereby, the spectrally dependent second harmonic generation intensity splits into two branches, and an anticrossing is observed at $\sim$ 25…

Mesoscale and Nanoscale Physics · Physics 2024-08-22 Chenjiang Qian , Viviana Villafañe , Pedro Soubelet , Peirui Ji , Andreas V. Stier , Jonathan J. Finley

Understanding the physics of light emitter in quantum nanostructure regarding scalability, geometry, structure of the system and coupling between different degrees of freedom is important as one can improve the design and further provide…

Mesoscale and Nanoscale Physics · Physics 2019-01-25 Chen-Yen Lai , S. A. Trugman , Jian-Xin Zhu

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

We investigate electron paring in a two-dimensional electron system mediated by vacuum fluctuations inside a nanoplasmonic terahertz cavity. We show that the structured cavity vacuum can induce long-range attractive interactions between…

Mesoscale and Nanoscale Physics · Physics 2019-04-10 Frank Schlawin , Andrea Cavalleri , Dieter Jaksch

We study ultracold atoms in a finite size one-dimensional optical lattice prepared in the Mott insulator phase and commonly coupled to a single cavity mode. Due to resonance dipole-dipole interactions among the atoms, electronic excitations…

Quantum Physics · Physics 2009-08-10 Hashem Zoubi , Helmut Ritsch