Title :
Fabrication of a pencil-shaped fiber probe for near-field optics by selective chemical etching
Author :
Mononobe, Shuji ; Ohtsu, Motoichi
Author_Institution :
Kanagawa Acad. of Sci. & Technol., Kawasaki, Japan
fDate :
10/1/1996 12:00:00 AM
Abstract :
We propose a novel method by chemical etching using hydrofluoric (HF) acid and a buffered HF solution (BHF) to fabricate a pencil-shaped fiber probe for near-field optics. We succeeded in producing such probes with high reproducibility using a dispersion-compensating fiber having the high GeO2 doped core. The method involves tapering of the cladding, then sharpening of the core. The fabricated probe has a conical tip with a cone angle of 20° and an apex diameter of less than 10 nm
Keywords :
compensation; etching; fibre optic sensors; optical fibre cladding; optical fibre dispersion; optical fibre fabrication; optical microscopes; probes; 10 nm; GeO2; HF; apex diameter; buffered HF solution; cone angle; conical tip; dispersion-compensating fiber; fabricated probe; fibre cladding tapering; fibre optic sensor fabrication; high GeO2 doped core; high reproducibility; hydrofluoric acid; near-field optics; optical microscopy; pencil-shaped fiber probe fabrication; selective chemical etching; Biomedical optical imaging; Chemicals; Etching; Hafnium; Optical buffering; Optical device fabrication; Optical devices; Petroleum; Probes; Reproducibility of results;
Journal_Title :
Lightwave Technology, Journal of
