Fabry-Pérot interference effects from rock-salt MgZnO/MgO multiple-quantum-well

Fabry-Pérot (F–P) microcavities were constructed in stable rock-salt (RS) structural Mg0·21Zn0·79O/MgO multiple-quantum-well (MQW) with perfect hetero-interface and wide band gap energy (4.930 eV). Obvious F–P interference patterns were observed in both of the transmission and photoluminescence spectra. The transfer matrix method was employed to analyze the F–P interference patterns. In-plane compressive stress-induced double sets of PL interference patterns were observed in the RS-Mg0.21Zn0·79O/MgO MQW. Such a strained MQW with inherent microcavity could be useful for high performance light-emitting devices. [Display omitted] •Stable rock-salt MgZnO/MgO MQW with perfect hetero-interface and wide band gap energy (4.930 eV) was grown by PLD.•Inherent F–P cavities with obvious F–P optical interference patterns were obtained from MgZnO/MgO MQW.•In-plane compressive stress-induced double sets of PL interference patterns were observed in the rock salt MgZnO/MgO MQW.