Route to strong localization of light: The role of disorder

Diego P. Molinari, Andrea Fratalocchi

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

By employing Random Matrix Theory (RMT) and firstprinciple calculations, we investigated the behavior of Anderson localization in 1D, 2D and 3D systems characterized by a varying disorder. In particular, we considered random binary layer sequences in 1D and structurally disordered photonic crystals in two and three dimensions. We demonstrated the existence of a unique optimal degree of disorder that yields the strongest localization possible. In this regime, localized modes are constituted by defect states, which can show subwavelength confinement properties. These results suggest that disorder offers a new avenue for subwavelength light localization in purely dielectric media. © 2012 Optical Society of America.
Original languageEnglish (US)
Pages (from-to)18156
JournalOptics Express
Volume20
Issue number16
DOIs
StatePublished - Jul 23 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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