Efficient excitation of self-collimated beams and single Bloch modes in planar photonic crystals
JOSA A, Vol. 20, Issue 5, pp. 935-940 (2003)
http://dx.doi.org/10.1364/JOSAA.20.000935
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Abstract
Using finite-difference time-domain calculations, we investigate out-of-plane coupling between a square-lattice planar photonic crystal and a conventional waveguide located above the photonic crystal. We couple a waveguide oriented in the ΓX direction to a photonic crystal mode in the second band and show that anticrossing takes place. In this way, a self-collimated beam is launched in the planar photonic crystal, with full power transfer. Furthermore, we investigate the coupling between a waveguide oriented in the ΓM direction and a photonic crystal and show that single photonic crystal modes can be selectively excited.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(130.1750) Integrated optics : Components
Citation
Jeremy Witzens and Axel Scherer, "Efficient excitation of self-collimated beams and single Bloch modes in planar photonic crystals," J. Opt. Soc. Am. A 20, 935-940 (2003)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-5-935
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