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Anderson localizations and photonic band-tail states observed in compositionally disordered platformopen access

Authors
Lee, MyungjaeLee, JeongkugKim, SunghwanCallard, SegoleneSeassal, ChristianJeon, Heonsu
Issue Date
Jan-2018
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Citation
SCIENCE ADVANCES, v.4, no.1, pp.1 - 8
Indexed
SCIE
SCOPUS
Journal Title
SCIENCE ADVANCES
Volume
4
Number
1
Start Page
1
End Page
8
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190885
DOI
10.1126/sciadv.1602796
ISSN
2375-2548
Abstract
Anderson localization in random structures is an intriguing physical phenomenon, for which experimental verifications are far behind theoretical predictions. We report the first experimental confirmations of photonic band-tail states and a complete transition of Anderson localization. An optically activated photonic crystal alloy platform enables the acquisition of extensive experimental data exclusively on pure eigenstates, revealing direct evidence of band-tail states and Anderson localization transition within the band-tail states. Analyses of both experimental and simulated data lead to a comprehensive picture of photon localization that is highly consistent with theories by Anderson and others. We believe that our results provide a strong experimental foundation upon which both the fundamental understandings and application possibility of Anderson localization can be promoted significantly.
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