alexa Mesoscopic self-collimation and slow light in all-positive index layered photonic crystals.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Arlandis J, Centeno E, Polls R, Moreau A, Campos J,

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Abstract We demonstrate a mesoscopic self-collimation effect in photonic crystal superlattices consisting of a periodic set of all-positive index 2D photonic crystal and homogeneous layers. We develop an electromagnetic theory showing that diffraction-free beams are observed when the curvature of the optical dispersion relation is properly compensated for. This approach allows us to combine slow-light regime together with self-collimation in photonic crystal superlattices presenting an extremely low filling ratio in air. © 2012 American Physical Society This article was published in Phys Rev Lett and referenced in Journal of Nanomedicine & Nanotechnology

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