Localized Modes in a Finite-Size Open Disordered Microwave Cavity

David Laurent (1) , Olivier Legrand (1) , Patrick Sebbah (1) , Christian Vanneste (1) , Fabrice Mortessagne (1)

1 LPMC - Laboratoire de physique de la matière condensée

We present measurements of the spatial intensity distribution of localized modes in a two-dimensional open microwave cavity randomly filled with cylindrical dielectric scatterers. We show that each of these modes displays a range of localization lengths and successfully relate the largest value to the measured leakage rate at the boundary. These results constitute unambiguous signatures of the existence of strongly localized electromagnetic modes in two-dimensionnal open random media.

Mots clés: localization; microwave cavity; wave propagation in disordered media

Domaines: Autre [cond-mat.other]

David Laurent, Olivier Legrand, Patrick Sebbah, Christian Vanneste, Fabrice Mortessagne. Localized Modes in a Finite-Size Open Disordered Microwave Cavity. Physical Review Letters, 2007, 99, pp.253902. ⟨10.1103/PhysRevLett.99.253902⟩. ⟨hal-00133810v3⟩