Electron-hole plasma induced band gap renormalization in ZnO microlaser cavities.

@article{Dai2014ElectronholePI,
  title={Electron-hole plasma induced band gap renormalization in ZnO microlaser cavities.},
  author={Jun Dai and Chunxiang Xu and Toshihiro Nakamura and Yueyue Wang and Jitao Li and Yi Lin},
  journal={Optics express},
  year={2014},
  volume={22 23},
  pages={
          28831-7
        }
}
We report electron-hole plasma (EHP) lasing in hexagonal ZnO microrods and thin nanobelts. Under the excitation of 325 nm line femtosecond pulsed laser, ultraviolet whispering-gallery mode (WGM) lasing was observed from hexagonal ZnO microrods. When EHP was formed at high excitation energy density, the center wavelength of the WGM lasing band presented a redshift from 387.5 nm to 397.5 nm, and the full width of half maximum (FWHM) of the WGM lasing band increased from 2.5 nm to 7 nm. Each… CONTINUE READING

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