Slow light using spectral hole burning in a Tm3+:YAG crystal

Details Slow light using spectral hole burning in a Tm3+:YAG crystal Slow light using spectral hole burning in a Tm3+:YAG crystal

2009-02-16

arxiv.org/abs/0902.2657v1

Physics

Quantum Physics

14 pages, 6 figures

Scientific paper

We report on light slowing down in a rare earth ion doped crystal by persistent spectral hole burning. The absence of motion of the active ions, the large inhomogeneous broadening, the small homogeneous width and the long lifetime of the hyperfine shelving states make this material convenient for the burning of narrow persistent spectral holes. Since the hole can be burnt long before the arrival of the input signal, there is no need for a strong coupling field, illuminating the sample simultaneously with the input signal, in contrast with procedures such as Electromagnetically Induced Transparency or Coherent Population Oscillations. Analyzing the slowing down process, we point out the role played by off resonance atoms where most of the incoming information is carried over while the pulse is confined within the sample.

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