Experimental studies of spontaneous emission from dopants in an absorbing dielectric.

@article{Kumar2005ExperimentalSO,
  title={Experimental studies of spontaneous emission from dopants in an absorbing dielectric.},
  author={G. Manoj Kumar and Desai Narayana Rao and Girish Agarwal},
  journal={Optics letters},
  year={2005},
  volume={30 7},
  pages={732-4}
}
We report the first measurements, to our knowledge, of the modification of spontaneous emission rates of Eu3+ ions in the visible region owing to an absorbing medium. Precise levels of the absorption coefficient are introduced by codoping with different amounts of Nd3+. We use a binary glass system PbO-B2O3 as the host, the compositional variation of which leads to a change in the real part of the refractive index. Measured lifetimes are found to follow the real cavity model, and the data are… CONTINUE READING

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