Title: Optically-induced defect states in photonic lattices
Subtitle: Formation of defect channels, directional couplers, and disordered lattices leading to Anderson-like light localization
Authors: Kanshu, A.
Rüter, C. E. 
Kip, D.  
Shandarov, V. M.
Language: eng
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: Jun-2009
Publisher: Springer
Document Type: Article
Journal / Series / Working Paper (HSU): Applied Physics B Lasers and optics 
Volume: 95
Issue: 3
Page Start: 537
Page End: 543
Publisher Place: Berlin
Formation of defect states by optical induction in one-dimensional photonic lattices fabricated in photorefractive lithium niobate is investigated experimentally. First, by using a moving narrow laser beam for defect recording, we investigate light propagation in samples containing single line defects and adjacent channel defects forming directional couplers. Then, these results are used to create lattices with randomly distributed defects, resembling a disordered optical potential. In such lattices, wave propagation is found to change from ballistic transport to transverse Anderson-like light localization as a function of induced disorder. © 2009 Springer-Verlag.
Organization Units (connected with the publication): Technische Universität Clausthal
URL: https://api.elsevier.com/content/abstract/scopus_id/67349113886
ISSN: 09462171
DOI: 10.1007/s00340-009-3465-4
Appears in Collections:Publications of the HSU Researchers (before HSU)

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