title: Self-collimating photonic crystal polarization beam splitter.
abstract: We present theoretical and experimental results of a polarization splitter device that consists of a photonic crystal (PhC) slab, which exhibits a large reflection coefficient for TE and a high transmission coefficient for TM polarization. The slab is embedded in a PhC tile operating in the self-collimation mode. Embedding the polarization-discriminating slab in a PhC with identical lattice symmetry suppresses the in-plane diffraction losses at the PhC-non-PhC interface. The optimization of the PhC-non-PhC interface is thereby decoupled from the optimization of the polarizing function. Transmissions as high as 35% for TM- and 30% for TE-polarized light are reported.
authors: Institut de Photonique et d'Electronique Quantique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 3, CH-1015 Lausanne, Switzerland.
authors: V
authors: V
authors: Zabelin
authors: L A
authors: LA
authors: Dunbar
authors: N
authors: N
authors: Le Thomas
authors: R
authors: R
authors: Houdré
authors: M V
authors: MV
authors: Kotlyar
authors: L
authors: L
authors: O'Faolain
authors: T F
authors: TF
authors: Krauss