Open AccessOptical modes in perovskite nanowire with shallow bi-periodic grating
Author(s) -
Alexander S. Berestennikov,
Maxim A. Gorlach,
Sergey Makarov,
Alexander B. Khanikaev
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012013
Subject(s) - lasing threshold , nanowire , perovskite (structure) , grating , materials science , exciton , resonance (particle physics) , condensed matter physics , work (physics) , distribution (mathematics) , optoelectronics , optics , physics , quantum mechanics , mathematics , chemistry , wavelength , mathematical analysis , crystallography
In this work, we investigate electromagnetic modes supported by a perovskite CsPbBr 3 nanowire with a shallow periodic grating on top. By creating a domain-wall geometry, we introduce a topological defect into the nanowire and observe a defect-localized lasing state. By tuning the parameters of the structure we ensure that the frequency of the localized state fits the frequency of exciton resonance in perovskite and perform full-wave numerical simulations of the field distribution for such state.