Physics – Optics
Scientific paper
2010-09-14
Optics Letters 35, 3339 (2010)
Physics
Optics
3 pages, 4 figures, to appear in Optics Letters
Scientific paper
We report on the existence of nonlinear surface waves which, on the one hand, do not require the threshold energy flow for their excitation, and, on the other hand, extend into media at both sides of the interface at low powers, i.e. can not be reduced to the conventional Tamm states. Such waves can be excited if the refractive index in at least one of the materials forming the interface is periodically modulated, with properly selected modulation depth and frequency. Thresholdless surface solitons can be stable in the entire existence domain.
Bludov Yuliy V.
Kartashov Yaroslav V.
Konotop Vladimir V.
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