Two-round quasi-whispering gallery mode exciton polaritons with large Rabi splitting in a GaN microrod.
Opt Express
; 29(24): 39788-39800, 2021 Nov 22.
Article
em En
| MEDLINE
| ID: mdl-34809335
ABSTRACT
We investigate the exciton polaritons and their corresponding optical modes in a hexagonal GaN microrod at room temperature. The dispersion curves are measured by the angle-resolved micro-photoluminescence spectrometer, and two types of exciton polaritons are identified with the help of the finite-difference time-domain simulation. By changing the pump position, the photon part of the exciton polaritons is found to switch between the quasi-whispering gallery modes and the two-round quasi-whispering gallery modes. The exciton polaritons formed by the latter are observed and distinguished for the first time, with a giant Rabi splitting as large as 2Ω = 230.3â
meV.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2021
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Article