Fabrication of a triple tapered probe for near-field optical spectroscopy in UV region based on selective etching of a multistep index fiber

Shuji Mononobe, Toshiharu Saiki, T. Suzuki, S. Koshihara, M. Ohtsu

Research output: Contribution to journalArticle

58 Citations (Scopus)


We propose a method to fabricate a novel triple tapered probe for highly sensitive and highly resolved near-field optical microscopy in a near ultraviolet region. The method is based on selective etching of a multistep index fiber. The obtained fiber probe has a triple tapered structure with three taper angles of 60°, 120°, and 60°. With near-field optical microscopy employing the probe, we succeeded in obtaining a photoluminescence image of polysilanes excited by an ultraviolet laser with a wavelength of 351 nm.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalOptics Communications
Issue number1-6
Publication statusPublished - 1998 Jan 15
Externally publishedYes



  • Buffered hydrogen fluoride solution
  • Near-field optics
  • Optical fiber
  • Scanning probe microscopy
  • Selective etching
  • Ultraviolet spectroscopy
  • Vapor-phase axial deposition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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