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Superfluorescent Rayleigh scattering from suspensions of dielectric particles

Robb, G.R.M. and McNeil, B.W.J. (2003) Superfluorescent Rayleigh scattering from suspensions of dielectric particles. Physical Review Letters, 90 (12). ISSN 0031-9007

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Abstract

We demonstrate that superfluorescent scattering of light can occur when laser light is incident on a collection of dielectric Rayleigh particles suspended in a viscous medium. Using a linear stability analysis, an expression for the spatiotemporal evolution of the scattered (probe) field is derived. An approximate condition for the progression of the interaction into the nonlinear regime is deduced and it is shown that, in the nonlinear regime, the scattered field intensity shows the characteristic quadratic dependence on particle density expected from a superfluorescent or superradiant process, once the effects of pump depletion are accounted for.