Unusual Brownian motion of photons in open absorbing media

  title={Unusual Brownian motion of photons in open absorbing media},
  author={Liyi Zhao and Chushun Tian and Zhao-qing Zhang and Xiangdong Zhang},
Very recent experiments have discovered that localized light in strongly absorbing media displays intriguing diffusive phenomena. Here we develop a first-principles theory of light propagation in open media with arbitrary absorption strength and sample length. We show analytically that photons in localized open absorbing media exhibit unusual Brownian motion. Specifically, wave transport follows the diffusion equation with the diffusion coefficient exhibiting spatial resolution. Most strikingly… 
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