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We show that when a monopolar current is passed through an n-i-n structure, superlinear photocurrent response occurs when there is a polariton condensate. This is in sharp contrast to the previously observed behavior for a standard…

Quantum Gases · Physics 2018-07-11 D. Myers , B. Ozden , M. Steger , E. Sedov , A. Kavokin , K. West , L. N. Pfeiffer , D. W. Snoke

We present here a new mechanism of light emission induced by the electric current in polyaniline micro- and nanostructures. This process involves the formation of excitons, exciton-polaritons and finally an exciton-polariton condensate,…

Mesoscale and Nanoscale Physics · Physics 2025-06-02 Jerzy J. Langer , Ewelina Frackowiak , Katarzyna Ratajczak

Optical feedback is a well-known method of controlling laser dynamics, which has been widely studied in photonic systems to induce complex behaviors such as chaos or enhanced coherence. However, its application to systems in the strong…

Optics · Physics 2025-07-29 R. Mirek , M. Furman , A. Opala , M. Król , W. Pacuski , J. Szczytko , H. Sigurðsson , B. Piętka

The precise adjustment of the polariton condensate flow under incoherent excitation conditions is an indispensable prerequisite for polariton-based logic gate operations. In this report, an all-optical approach for steering the motion of a…

We report on the realization of all-optical planar microlensing for exciton-polariton condensates in semiconductor microcavities. We utilize spatial light modulators to structure a nonresonant pumping beam into a planoconcave lens-shape…

Mesoscale and Nanoscale Physics · Physics 2023-10-20 Denis Aristov , Stepan Baryshev , Julian D. Töpfer , Helgi Sigurðsson , Pavlos G. Lagoudakis

We report experimental evidence of the interaction between intersubband polaritons and longitudinal optical phonons in non-dispersive mid-infrared cavities, under resonant optical injection. The light emission originating from spontaneous…

We study a system of interacting matter quasiparticles strongly coupled to photons inside an optomechanical cavity. The resulting normal modes of the system are represented by hybrid polaritonic quasiparticles, which acquire effective…

Quantum Gases · Physics 2017-02-27 N. Bobrovska , M. Matuszewski , T. C. H. Liew , O. Kyriienko

An expanding polariton condensate is investigated under pulsed nonresonant excitation with a small laser pump spot. Far above the condensation threshold we observe a pronounced increase in the dispersion curvature with a subsequent…

The drag of half-light half-mater quasiparticles, exciton-polaritons, by an electric current is a peculiar mechanism of light-matter interaction in solids. While an ideal superfluid is protected from being dragged by its zero viscosity,…

Mesoscale and Nanoscale Physics · Physics 2019-08-14 Igor Y. Chestnov , Yuri G. Rubo , Alexey V. Kavokin

Multi-level exciton-polariton systems offer an attractive platform for studies of non-linear optical phenomena. However, studies of such consequential non-linear phenomena as polariton condensation and lasing in planar microcavities have so…

We calculate a light-induced electric current which can occur from a Bose-Einstein condensate under the action of an external electromagnetic field with the frequency exceeding the ionization potential of the bosons, taking a system of…

Mesoscale and Nanoscale Physics · Physics 2018-11-28 V. M. Kovalev , I. G. Savenko

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…

We investigate the response of a polariton laser driven slightly off-resonantly using light fields differing from the routinely studied coherent pump sources. The response to driving light fields with thermal and displaced thermal…

Mesoscale and Nanoscale Physics · Physics 2015-05-21 Marc Assmann , Manfred Bayer

Exciton-polaritons (polaritons herein) offer a unique nonlinear platform for studies of collective macroscopic quantum phenomena in a solid state system. Shaping of polariton flow and polariton confinement via potential landscapes created…

Polariton condensates are investigated in periodical potentials created by surface acoustic waves using both resonant and non-resonant optical excitation. Under resonant pumping condensates are formed due to polariton parametric scattering…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 D. N. Krizhanovskii , E. A. Cerda , S. S. Gavrilov , D. Sarkar , K. Guda , R. Bradley , P. V. Santos , R. Hey , K. Biermann , M. Sich , F. Fras , M. S. Skolnick

In this report we demonstrate a novel concept for a planar cavity polariton beam amplifier using non-resonant excitation. In contrast to resonant excitation schemes, background carriers are injected which form excitons, providing both gain…

Topological insulators have surface states with a remarkable helical spin structure, with promising prospects for applications in spintronics. Strategies for generating spin polarized currents, such as the use of magnetic contacts and…

Mesoscale and Nanoscale Physics · Physics 2014-05-21 Rodrigo A. Muniz , J. E. Sipe

When molecular transitions strongly couple to photon modes, they form hybrid light-matter modes called polaritons. Collective vibrational strong coupling is a promising avenue for control of chemistry, but this can be deterred by the large…

The influence of coherent optical nonlinearities on polariton propagation effects is studied within a theory-experiment comparison. A novel approach that combines a microscopic treatment of the boundary problem in a sample of finite…

Other Condensed Matter · Physics 2009-11-11 S. Schumacher , G. Czycholl , F. Jahnke , I. Kudyk , L. Wischmeier , I. Rückmann , T. Voss , J. Gutowski , A. Gust , D. Hommel

We discover an unexpected behavior in a hybrid system composed of cavity strongly coupled to molecules and subjected to high intensity coherent pumping. We show that if the frequency of the pumping wave is close to polariton transitions in…

Quantum Physics · Physics 2025-05-09 I. S. Pashkevich , I. V. Doronin , A. A. Zyablovsky , E. S. Andrianov
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