Defect-free surface states in modulated photonic lattices

Ivan L. Garanovich; Andrey A. Sukhorukov; Yuri S. Kivshar

doi:10.1103/PhysRevLett.100.203904

Defect-free surface states in modulated photonic lattices

Ivan L. Garanovich, Andrey A. Sukhorukov, Yuri S. Kivshar

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53 Citations (Scopus)

Abstract

We predict that interfaces of periodically curved waveguide arrays can support a novel type of surface states which exist in a certain region of modulation parameters associated with the band flattening. Such linear surface states appear in truncated but otherwise perfect (defect-free) lattices as a direct consequence of the periodic modulation of the lattice potential. We show that the existence of these modes in different band gaps can be flexibly controlled by selecting the modulation profile, with no restrictions on Bloch-wave symmetries characteristic of Shockley states.

Original language	English
Article number	203904
Journal	Physical Review Letters
Volume	100
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.100.203904
Publication status	Published - 23 May 2008

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Defect-free surface states in modulated photonic lattices

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