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Medientyp:
E-Artikel
Titel:
Band gap formation and Anderson localization in disordered photonic materials with structural correlations
Beteiligte:
Froufe-Pérez, Luis S.;
Engel, Michael;
Sáenz, Juan José;
Scheffold, Frank
Erschienen:
Proceedings of the National Academy of Sciences, 2017
Erschienen in:
Proceedings of the National Academy of Sciences, 114 (2017) 36, Seite 9570-9574
Sprache:
Englisch
DOI:
10.1073/pnas.1705130114
ISSN:
0027-8424;
1091-6490
Entstehung:
Hochschulschrift:
Anmerkungen:
Beschreibung:
<jats:title>Significance</jats:title>
<jats:p>It has been shown recently that disordered dielectrics can support a photonic band gap in the presence of structural correlations. This finding is surprising, because light transport in disordered media has long been exclusively associated with photon diffusion and Anderson localization. Currently, there exists no picture that may allow the classification of optical transport depending on the structural properties. Here, we make an important step toward solving this fundamental problem. Based on numerical simulations of transport statistics, we identify all relevant regimes in a 2D system composed of silicon rods: transparency, photon diffusion, classical Anderson localization, band gap, and a pseudogap tunneling regime. We summarize our findings in a transport phase diagram that organizes optical transport properties in disordered media.</jats:p>