Observation of Spatial Fluctuations of the Local Density of States in Random Media
| Abstract | We experimentally study spatial fluctuations of the local density ofstates (LDOS) inside three-dimensional random photonic media. The LDOSis probed at many positions inside the random photonic media bymeasuring emission rates of a large number of individual fluorescentnanospheres. The emission rates are observed to fluctuate spatially. Weanalyze the variance of these fluctuations for samples with differentscattering strengths. The measured variance of the emission rates agreeswell with a model that takes into account the effect of the nearestscatterer only. |
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| Authors | M.D. Birowosuto, S.E. Skipetrov, W.L. Vos, A. P. Mosk |
| Year of publication | 2010 |
| Date published | 07/2010 |
| Journal | Phys. Rev. Lett. |
| Volume | 105 |
| Pages | 013904: 1-4 |
| Keywords | correlations, LDOS, local density of states, Mesoscopic optics, multiple light scattering |