Nonlinear dynamics of absorption and photobleaching of dyes.

  title={Nonlinear dynamics of absorption and photobleaching of dyes.},
  author={Francesca Serra and Eugene M. Terentjev},
  journal={The Journal of chemical physics},
  volume={128 22},
The celebrated Lambert-Beer law of light absorption in photochromic media is only valid at low intensities of incident light and low concentration of chromophore. Here we address the generic problem of photoabsorption dynamics, experimentally studying the case of azobenzene isomerization. We show that the nonlinear regime is very common and easy to achieve in many practical situations, especially in thick samples where the light depletes the chromophore in the first layers and can propagate… CONTINUE READING

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