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Coherent Polariton Modes and Lasing in ZnO Nano‐ and Microwires
Author(s) -
SchmidtGrund Rüdiger,
Michalsky Tom,
Wille Marcel,
Grundmann Marius
Publication year - 2019
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201800462
Subject(s) - polariton , lasing threshold , exciton , excitation , laser , optoelectronics , materials science , electron , physics , condensed matter physics , optics , quantum mechanics
This article presents a topical literature survey on types of coherent states in bare and functionalized ZnO nano‐ and microwire microcavities, together with own new approaches of the authors. By optical excitation, coherent emission from electron–hole plasma and from exciton‐polariton Bose–Einstein condensates, both up to room temperature, have been observed by various research groups. The impact of the interplay between the excitation properties and geometry of the structures as well as of the charge carrier dynamics on the emission behavior of the structures has been discussed. For different cavity types spectrally tunable mono‐/dual‐mode laser operation as well as propagation of coherent polariton states have been demonstrated. Further functionalization of the bare structures in hybrid systems allows optimization and engineering of the cavity as well as the polariton mode structure and the design of sophisticated light–matter states.