Room temperature organic exciton–polariton condensate in a lattice
| Autor: | Marco Dusel, Christian Schneider, Sven Höfling, Sebastian Klembt, Simon Betzold, Utz Fischer, Jürgen Ohmer, Oleg A. Egorov |
|---|---|
| Přispěvatelé: | University of St Andrews. Condensed Matter Physics, University of St Andrews. School of Physics and Astronomy |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Exciton
TK Science NDAS General Physics and Astronomy FOS: Physical sciences Polaritons Physics::Optics 02 engineering and technology Condensed Matter - Soft Condensed Matter 01 natural sciences General Biochemistry Genetics and Molecular Biology Article TK Electrical engineering. Electronics Nuclear engineering Effective mass (solid-state physics) Lattice (order) 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Polariton 010306 general physics Photonic lattices lcsh:Science QC Boson Physics Condensed Matter::Quantum Gases Multidisciplinary Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter::Other Bose-Einstein condensates General Chemistry Organic molecules in materials science 021001 nanoscience & nanotechnology QC Physics Soft Condensed Matter (cond-mat.soft) lcsh:Q 0210 nano-technology Optics (physics.optics) Physics - Optics |
| Zdroj: | Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Interacting Bosons, loaded in artificial lattices, have emerged as a modern platform to explore collective manybody phenomena, quantum phase transitions and exotic phases of matter as well as to enable advanced on chip simulators. Such experiments strongly rely on well-defined shaping the potential landscape of the Bosons, respectively Bosonic quasi-particles, and have been restricted to cryogenic, or even ultra-cold temperatures. On chip, the GaAs-based exciton-polariton platform emerged as a promising system to implement and study bosonic non-linear systems in lattices, yet demanding cryogenic temperatures. In our work, we discuss the first experiment conducted on a polaritonic lattice at ambient conditions: We utilize fluorescent proteins as an excitonic gain material, providing ultra-stable Frenkel excitons. We directly take advantage of their soft nature by mechanically shaping them in the photonic one-dimensional lattice. We demonstrate controlled loading of the condensate in distinct orbital lattice modes of different symmetries, and finally explore, as an illustrative example, the formation of a gap solitonic mode, driven by the interplay of effective interaction and negative effective mass in our lattice. The observed phenomena in our open dissipative system are comprehensively scrutinized by a nonequilibrium model of polariton condensation. We believe, that this work is establishing the organic polariton platform as a serious contender to the well-established GaAs platform for a wide range of applications relying on coherent Bosons in lattices, given its unprecedented flexibility, cost effectiveness and operation temperature. 19 pages, 4 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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