Observation of whispering gallery modes from hexagonal ZnO microdisks using cathodoluminescence spectroscopy

@inproceedings{Choi2013ObservationOW,
  title={Observation of whispering gallery modes from hexagonal ZnO microdisks using cathodoluminescence spectroscopy},
  author={Sumin Choi and Cuong Ton-That and Matthew R. Phillips and Igor Aharonovich},
  year={2013}
}
Zinc oxide hexagonal microdisks with diameters ranging from 3 lm up to 15 lm were fabricated by thermal chemical vapour deposition. Optical characterisation of ZnO microdisks was performed using low temperature (80 K) cathodoluminescence (CL) imaging and spectroscopy. The microdisks exhibited green luminescence locally distributed near the hexagonal boundary of the ZnO microdisks. High resolution CL spectra of the ZnO microdisks revealed whispering gallery modes (WGMs) emission. The… CONTINUE READING