Single mode mid-infrared silver halide asymmetric flat waveguide obtained from crystal extrusion Grille, Romain ; Martin, Guillermo ; Labadie, Lucas ; Arezki, Brahim ; Kern, Pierre ; Lewi, Tomer ; Tsun, A. ; Katzir, Abraham Abstract Publication: Optics Express Pub Date: July 2009 DOI: 10.1364/OE.17.012516 Bibcode: 2009OExpr..1712516G