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Beam dynamics in disordered PT-symmetric optical lattices based on eigenstate analyses
Yao, Xiankun1; Liu, Xueming1,2,3
Source PublicationPHYSICAL REVIEW A
Contribution Rank1

Wave functions will experience a localization process when evolving in disordered lattices. Here, we have demonstrated the effects of disordered PT-symmetric potentials on wave- function characteristics in optics based on eigenstate analyses. In weak- disorder cases, by using the tight-binding approximation method, a conclusion is obtained that the increasing of the imaginary part of potential can enhance the diffraction, while the increasing disorder will block the diffraction and lead to localization. In the general case, band theory is used for band-structure analysis of three bands. We find that the disorder has a smaller effect on the higher- order band, which is proved by the beam evolutions. Our work may be instructive for realizing beam path control by manipulating the strengths of disorder and gain and/ or loss of lattice.

WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI ; EI
WOS Research AreaOptics ; Physics
Funding OrganizationNational Natural Science Foundation of China(61525505) ; Key Scientific and Technological Innovation Team Project in Shaanxi Province(2015KCT-06)
WOS SubjectOptics ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000395982100009
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
2.Zhejiang Univ, Dept Opt Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
3.Hunan Univ Sci & Technol, Sch Phys & Elect Sci, Xiangtan 411201, Peoples R China
Recommended Citation
GB/T 7714
Yao, Xiankun,Liu, Xueming. Beam dynamics in disordered PT-symmetric optical lattices based on eigenstate analyses[J]. PHYSICAL REVIEW A,2017,95(3).
APA Yao, Xiankun,&Liu, Xueming.(2017).Beam dynamics in disordered PT-symmetric optical lattices based on eigenstate analyses.PHYSICAL REVIEW A,95(3).
MLA Yao, Xiankun,et al."Beam dynamics in disordered PT-symmetric optical lattices based on eigenstate analyses".PHYSICAL REVIEW A 95.3(2017).
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