title: Reduced Fresnel losses in chalcogenide fibers by using anti-reflective surface structures on fiber end faces.
abstract: We demonstrate microstructuring of chalcogenide fiber end faces in order to obtain enhanced transmission due to the antireflective properties of the microstructured surfaces. A variety of molding approaches have been investigated for As(2)S(3) and As(2)Se(3) fibers. Transmission as high as 97% per facet was obtained in the case of As(2)S(3) fiber, compared to the native, Fresnel-loss limited, transmission of 83%. The potential for hydrophobic character was also demonstrated by increasing the contact angle of water droplets to greater than 120°.
authors.affiliation: US Naval Research Lab, Washington, DC 20375, USA. sanghera@nrl.navy.mil
authors.forename: Jasbinder
authors.initials: J
authors.lastname: Sanghera
authors.forename: Catalin
authors.initials: C
authors.lastname: Florea
authors.forename: Lynda
authors.initials: L
authors.lastname: Busse
authors.forename: Brandon
authors.initials: B
authors.lastname: Shaw
authors.forename: Fritz
authors.initials: F
authors.lastname: Miklos
authors.forename: Ishwar
authors.initials: I
authors.lastname: Aggarwal
mesh_terms: D016477:Artifacts; D018011:Chalcogens / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005898:Glass / Q000737:chemistry; D007909:Lenses; D008027:Light; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation
chemical_list: D018011:Chalcogens