Anderson localizations and photonic band-tail states observed in compositionally disordered platformopen access
- Authors
- Lee, Myungjae; Lee, Jeongkug; Kim, Sunghwan; Callard, Segolene; Seassal, Christian; Jeon, 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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