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A stationary wave solution is obtained for the proton driven plasma wake field accelerator (PDPWFA). The wake field excitation by trains of equidistant proton microbunches produced due to self modulational instability has been discussed.…

Plasma Physics · Physics 2020-04-09 Mithun Karmakar , Sudip Sengupta , Nikhil Chakrabarti

The quantum correlations between the beams generated by polariton pair scattering in a semiconductor microcavity above the parametric oscillation threshold are computed analytically. The influence of various parameters like the…

Strongly Correlated Electrons · Physics 2017-02-20 Jean-Philippe Karr , Augustin Baas , Elisabeth Giacobino

Multidimensional coherent spectroscopy directly unravels multiply excited states that overlap in a linear spectrum. We report multidimensional coherent optical photocurrent spectroscopy in a semiconductor polariton diode and explore the…

We investigate the many-body states of exciton-polaritons that can be observed by pump-probe spectroscopy. Here, a weak-probe `spin-down' polariton is introduced into a coherent state of `spin-up' polaritons created by a strong pump. We…

Single-photon sources based on neutral or charged excitons in a semiconductor quantum dot are attractive resources for photonic quantum computers and simulators. To obtain indistinguishable photons, the source is pumped on resonance with…

Mesoscale and Nanoscale Physics · Physics 2026-04-27 Luca Vannucci , Niels Gregersen

We propose a method to enhance the spatial coupling between ballistic exciton-polariton condensates in a semiconductor microcavity based on available spatial light modulator technologies. Our method, verified by numerically solving a…

Quantum Gases · Physics 2022-12-28 Yuan Wang , Pavlos G. Lagoudakis , Helgi Sigurdsson

Collective (elementary) excitations of quantum bosonic condensates, including condensates of exciton polaritons in semiconductor microcavities, are a sensitive probe of interparticle interactions. In anisotropic microcavities with…

We report active tuning of the polariton resonance of quantum well excitons in a semiconductor microcavity using applied stress. Starting with the quantum well exciton energy higher than the cavity photon mode, we use stress to reduce the…

Other Condensed Matter · Physics 2009-11-11 R. B. Balili , D. W. Snoke , L. Pfeiffer , K. West

We present a detailed theoretical study of transverse exciton-polariton patterns in semiconductor quantum-well microcavities. These patterns are initiated by directional instabilities in the uniform pump-generated polariton field and are…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 M. H. Luk , Y. C. Tse , N. H. Kwong , P. T. Leung , Przemslaw Lewandowski , R. Binder , Stefan Schumacher

Exciton-polaritons in semiconductors are quasi-particles which have recently shown the capability to undergo phase transition into a coherent hybrid state of light and matter. The observation of such quasi-particles in organic microcavities…

Motivated by the dramatic success of realizing cavity exciton-polariton condensation in experiment we consider the formation of polaritons from cavity photons and the amplitude or Higgs mode of a superconductor. Enabled by the recently…

Superconductivity · Physics 2020-02-19 Zachary M. Raines , Andrew A. Allocca , Mohammad Hafezi , Victor M. Galitski

Exciton-polaritons - coherently hybridized states of excitons and photons - are instrumental for solid-state nonlinear optics and quantum simulations. To enable engineered polariton energy landscapes and interactions, local control over the…

We present a precise calculation of spatially-indirect exciton states in semiconductor coupled quantum wells and polaritons formed from their coupling to the optical mode of a microcavity. We include the presence of electric and magnetic…

Mesoscale and Nanoscale Physics · Physics 2016-09-28 J. Wilkes , E. A. Muljarov

Dipolaritons are quasiparticles that arise in coupled quantum wells embedded in a microcavity, they are a superposition of a photon, a direct exciton and an indirect exciton. We propose the existence of dipolaritons in a system of two…

Mesoscale and Nanoscale Physics · Physics 2016-11-23 J. S. Rojas-Arias , B. A. Rodríguez , H. Vinck-Posada

We present a microscopic theory of the equilibrium polariton condensate state of a semiconductor quantum well in a planar optical cavity. The theory accounts for the adjustment of matter excitations to the presence of a coherent photon…

Mesoscale and Nanoscale Physics · Physics 2016-12-07 Fei Xue , Fengcheng Wu , Ming Xie , Jung-Jung Su , A. H. MacDonald

We demonstrate the simultaneous dressing of both vacuum-to-exciton and exciton-to-biexciton transitions of a single semiconductor quantum dot in a high-Q micropillar cavity, using photoluminescence spectroscopy. Resonant two-photon…

It is widely assumed that photons cannot be manipulated using electric or magnetic fields. Even though hybridization of photons with electronic polarization to form exciton-polaritons has paved the way to a number of ground-breaking…

Control is exerted over the exciton-polariton physics in metal - Poly(9,9-dioctyl fluorene) - metal microcavities via conformational changes to the polymer backbone. Using thin-film samples containing increasing fractions of $\beta$-phase…

Soft Condensed Matter · Physics 2018-11-21 F. Le Roux , D. D. C. Bradley

Exciton-polaritons are quasi-particles arising from the strong coupling regime between excitons and photons. In planar microcavitites, phenomena such as superfluidity or Bose-Einstein condensation can be observed. Those systems have…

Quantum Gases · Physics 2021-02-04 Anne Maître

The theory of the linear optical response of excitons in quantum wells and polaritons in planar semiconductor microcavities is reviewed, in the light of the existing experiments. For quantum well excitons, it is shown that disorder mainly…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Vincenzo Savona
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