Route to strong localization of light: The role of disorder

Handle URI:
http://hdl.handle.net/10754/562013
Title:
Route to strong localization of light: The role of disorder
Authors:
Molinari, Diego P.; Fratalocchi, Andrea ( 0000-0001-6769-4439 )
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.
KAUST Department:
Applied Mathematics and Computational Science Program; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Publisher:
The Optical Society
Journal:
Optics Express
Issue Date:
2012
DOI:
10.1364/OE.20.018156
Type:
Article
ISSN:
10944087
Sponsors:
For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia. Numerical simulations have been performed with our NANOCPP code, which is an homemade, highly scalable 2D/3D FDTD code expressively developed for large scale parallel simulations of disordered materials. D. Molinari acknowledges partial support from PRIN MIUR 2009. The authors thank G. Ruocco and P. de Bernardis for fruitful discussions.
Appears in Collections:
Articles; Applied Mathematics and Computational Science Program; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMolinari, Diego P.en
dc.contributor.authorFratalocchi, Andreaen
dc.date.accessioned2015-08-03T09:42:49Zen
dc.date.available2015-08-03T09:42:49Zen
dc.date.issued2012en
dc.identifier.issn10944087en
dc.identifier.doi10.1364/OE.20.018156en
dc.identifier.urihttp://hdl.handle.net/10754/562013en
dc.description.abstractBy 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.en
dc.description.sponsorshipFor computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia. Numerical simulations have been performed with our NANOCPP code, which is an homemade, highly scalable 2D/3D FDTD code expressively developed for large scale parallel simulations of disordered materials. D. Molinari acknowledges partial support from PRIN MIUR 2009. The authors thank G. Ruocco and P. de Bernardis for fruitful discussions.en
dc.publisherThe Optical Societyen
dc.titleRoute to strong localization of light: The role of disorderen
dc.typeArticleen
dc.contributor.departmentApplied Mathematics and Computational Science Programen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalOptics Expressen
dc.contributor.institution1PRIMALIGHT (www.primalight.org), Faculty of Electrical Engineeringen
dc.contributor.institutionDept. of Astronomy, Bologna University, via Ranzani 1, I-40127, Bologna, Italyen
kaust.authorFratalocchi, Andreaen
kaust.authorMolinari, Diego P.en
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