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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 1, Iss. 8 — Oct. 13, 1997
  • pp: 229–233

Fabrication of a pencil-shaped fiber probe with a nanometric protrusion from a metal film for near-field optical microscopy

Shuji Mononobe, R. Uma Maheswari, and Motoichi Ohtsu  »View Author Affiliations


Optics Express, Vol. 1, Issue 8, pp. 229-233 (1997)
http://dx.doi.org/10.1364/OE.1.000229


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Abstract

We propose a method to fabricate a probe with a nanometric protrusion for near-field optical microscopy. The method involves a tapering process based on selective etching of a GeO2-doped fiber in a buffered hydrogen fluoride solution and a metallizing process by vacuum evaporation and chemical polishing. We fabricated a tapered probe which has a protrusion emerging from a metal film. The protrusion has an apex diameter less than 10nm and a foot diameter less than 20nm. Employing the probe, we succeeded in obtaining a highly resolved image of 20nm gold particles.

© Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2350) Fiber optics and optical communications : Fiber optics imaging
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(180.5810) Microscopy : Scanning microscopy

ToC Category:
Research Papers

History
Original Manuscript: July 29, 1997
Revised Manuscript: July 22, 1997
Published: October 13, 1997

Citation
Shuji Mononobe, R. Uma Maheswari, and Motoichi Ohtsu, "Fabrication of a pencil-shaped fiber probe with a nanometric protrusion from a metal film for near-field optical microscopy," Opt. Express 1, 229-233 (1997)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-1-8-229


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References

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  7. M. Naya, R. Micheletto, S. Mononobe, R. Uma Maheswari, and M. Ohtsu, Near-field optical imaging of flagellar filaments of salmonella in water with optical feedback control, Appl. Opt. 36, 1681-1683 (1997). [CrossRef] [PubMed]
  8. A. Zvyagin, J. D. White, and M. Ohtsu, Near-field optical microscope image formation: a theoretical and experimental study, Opt. Lett. 22, 955-957 (1997). [CrossRef] [PubMed]
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  10. S. Mononobe and M. Ohtsu, "A model based on geometrical construction in designing a pencil-shaped fiber probe for near-field optics," J. Lightwave Technol. 15, 1051-1055 (1997). [CrossRef]
  11. R. Uma Maheswari, H. Tatsumi, Y. Katayama, and M. Ohtsu, Observation of subcellular nanostructure of single neurons with an illumination mode photon scanning tunneling microscope, Opt. Commun. 120, 325-334 (1995). [CrossRef]
  12. R. Uma Maheswari, H. Kadono, and M. Ohtsu, Power spectral analysis for evaluating optical near-field image of 20nm gold particles, Opt. Commun. 131, 133-142 (1996). [CrossRef]

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