title: Silver halide photonic crystal fibers for the middle infrared.
abstract: Photonic crystal fibers are normally holey silica fibers, which are opaque in the mid- and far-infrared. We have fabricated novel fibers by multiple extrusions of silver halide crystalline materials, which are highly transparent in the mid-infrared. These fibers are composed of two solid materials; The core consists of pure AgBr, and the cladding includes AgCl fiberoptic elements arranged in two concentric hexagonal rings around the core. Flexible fibers of outer diameter 1 mm and length of approximately 1 m were fabricated, and their optical properties were measured. These fibers exhibited core-clad behavior and would be extremely useful for IR laser power transmission, IR radiometry, and IR spectroscopy.
authors.affiliation: Raymond and Beverly Sackler Faculty of Exact Science, School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv, Israel 69978. eranr@post.tau.ac.il
authors.forename: Eran
authors.initials: E
authors.lastname: Rave
authors.forename: Pinhas
authors.initials: P
authors.lastname: Ephrat
authors.forename: Mati
authors.initials: M
authors.lastname: Goldberg
authors.forename: Efi
authors.initials: E
authors.lastname: Kedmi
authors.forename: Abraham
authors.initials: A
authors.lastname: Katzir