Title :
Enhancement of Surface Wettability by Intra-Helium Plasma for Liquid Core Fiber Lens
Author :
Kassani, Sahar Hosseinzadeh ; Khazaeinezhad, Reza ; Nazari, Tavakol ; Wonho Choe ; Kyunghwan Oh
Author_Institution :
Inst. of Phys. & Appl. Phys., Yonsei Univ., Seoul, South Korea
Abstract :
We generated an atmospheric pressure helium plasma inside a silica hollow optical fiber (HOF) and the surface wettability of the inside wall was flexibly controlled by the plasma intensity. By filling the glycerol into the HOF, we experimentally investigated the surface characteristics by contact angle measurements. Liquid-fiber optic lenses with various numerical apertures were proposed and the light intensity patterns through liquid core lens to the air were investigated numerically.
Keywords :
atmospheric pressure; contact angle; helium; lenses; optical fibres; organic compounds; plasma jets; silicon compounds; wetting; He; SiO2; atmospheric pressure helium plasma; contact angle measurements; glycerol; intra-helium plasma; light intensity patterns; liquid core fiber lens; liquid-fiber optic lenses; numerical apertures; plasma intensity; silica hollow optical fiber; surface wettability; Helium; Lenses; Liquids; Optical fibers; Plasmas; Silicon compounds; Surface treatment; Fiber optics; atmospheric-pressure plasmas; lenses; liquid core fiber; optical fiber applications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2348559
