Coherent random lasers in weakly scattering polymer films containing silver nanoparticles

@inproceedings{Meng2009CoherentRL,
  title={Coherent random lasers in weakly scattering polymer films containing silver nanoparticles},
  author={Xiangeng Meng and Koji Fujita and Shunsuke Murai and Katsuhisa Tanaka},
  year={2009}
}
We report on the observations of coherent random lasers in weakly scattering polymer films embedded with silver nanoparticles. The dominant oscillation cavity calculated from the ensemble-averaged power Fourier transform spectrum of single-shot emission spectra is shorter by more than two orders of magnitude than the scattering mean-free path, indicating that the oscillation cavity is loosely associated with multiple scattering. We suggest that the coherent feedback arises from the cooperative… CONTINUE READING

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