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Surface optical Bloch oscillations in semi-infinite waveguide arrays |
Optics Letters, Vol. 37, Issue 11, pp. 1892-1894 (2012)
http://dx.doi.org/10.1364/OL.37.001892
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Abstract
We predict that surface optical Bloch oscillations can exist in semi-infinite waveguide arrays with a linear index variation, if the array parameters close to the boundary are appropriately perturbed. The perturbation is such that the surface states obtain the Wannier–Stark ladder eigenvalues of the unperturbed infinite array. The number of waveguides, whose parameters need to be controlled, decreases with increasing ratio of index gradient over coupling. The configuration can find applications as a “matched” termination of waveguide arrays to eliminate the distortion of Bloch oscillations due to reflection on the boundaries.
© 2012 Optical Society of America
OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7380) Optical devices : Waveguides, channeled
(240.6690) Optics at surfaces : Surface waves
(230.4555) Optical devices : Coupled resonators
ToC Category:
Optical Devices
History
Original Manuscript: February 16, 2012
Revised Manuscript: March 2, 2012
Manuscript Accepted: March 3, 2012
Published: May 23, 2012
Citation
I. D. Chremmos and N. K. Efremidis, "Surface optical Bloch oscillations in semi-infinite waveguide arrays," Opt. Lett. 37, 1892-1894 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-11-1892
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