15 February 2008 ZnO hybrid microcavities grown by plasma assisted molecular beam epitaxy
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Abstract
Strong coupling between the exciton and cavity modes were demonstrated in a bulk ZnO-based hybrid microcavity The hybrid microcavity consisted of a λ-thick bulk ZnO cavity layer sandwiched between a 29 pair Al0.5Ga0.5N/GaN bottom distributed Bragg reflector (DBR) and an 8 pair SiO2/Si3N4 top DBR grown by molecular beam epitaxy, metalorganic chemical vapor deposition, and ultra high vacuum plasma-enhanced chemical vapor deposition, respectively. All layer interfaces were sharp and optical reflectivity measurements were performed to characterize the DBRs. The anti-crossing behavior in the polarton dispersion, which indicates the system is in the strong coupling regime was observed in angle-resolved photoluminescence measurements at room temperature, and a vacuum Rabi splitting of ~50 meV in the ZnO-based hybrid microcavity was obtained.
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Ryoko Shimada, Jinqiao Xie, Vitaliy Avrutin, Ümit Özgür, Hadis Morkoç, "ZnO hybrid microcavities grown by plasma assisted molecular beam epitaxy", Proc. SPIE 6895, Zinc Oxide Materials and Devices III, 68950I (15 February 2008); doi: 10.1117/12.762299; https://doi.org/10.1117/12.762299
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