Title: | Optically-induced defect states in photonic lattices: 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 | 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 | Abstract: | 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 | ISSN: | 0946-2171 | Publisher DOI: | 10.1007/s00340-009-3465-4 |
Appears in Collections: | 6 - Publication references (without fulltext) of your publications before HSU |
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