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

Volume

14

Issue

10

fYear

1996

fDate

10/1/1996 12:00:00 AM

Firstpage

2231

Lastpage

2235

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.541212

Filename

541212