Naslov
Anderson localization of partially incoherent light

Autori
Čapeta, Davor ; Radić, Juraj ; Szameit, Alex ; Segev, Mordechai ; Buljan, Hrvoje

Izvornik
Physical Review A - Atomic, Molecular, and Optical Physics (1050-2947) 84 (2011); 011801(R)-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Anderson localization; disordered photonic lattices

Sažetak
We study Anderson localization and propagation of partially spatially incoherent wavepackets in linear disordered potentials, motivated by the insight that interference phenomena resulting from multiple scattering are affected by the coherence of the waves. We find that localization is delayed by incoherence: the more incoherent the waves are, the longer they diffusively spread while propagating in the medium. However, if all the eigenmodes of the system are exponentially localized (as in one- and two-dimensional disordered systems), any partially incoherent wavepacket eventually exhibits localization with exponentially decaying tails, after sufficiently long propagation distances. Interestingly, we find that the asymptotic behavior of the incoherent beam is similar to that of a single instantaneous coherent realization of the beam.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA