Localized Modes in Open One-Dimensional Dissipative Random Systems

Details Localized Modes in Open One-Dimensional Dissipative Random Systems Localized Modes in Open One-Dimensional Dissipative Random Systems

2006-08-23

arxiv.org/abs/cond-mat/0608509v2

Phys. Rev. Lett. 97, 243904 (2006)

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 3 figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.97.243904

We consider, both theoretically and experimentally, the excitation and detection of the localized quasi-modes (resonances) in an open dissipative 1D random system. We show that even though the amplitude of transmission drops dramatically so that it cannot be observed in the presence of small losses, resonances are still clearly exhibited in reflection. Surprisingly, small losses essentially improve conditions for the detection of resonances in reflection as compared with the lossless case. An algorithm is proposed and tested to retrieve sample parameters and resonances characteristics inside the random system exclusively from reflection measurements.

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