Fabrication of a near-field optical fiber probe with a nanometric metallized protrusion

Takuya Matsumoto, Tsutomu Ichimura, Takashi Yatsui, Motonobu Kourogi, Toshiharu Saiki, Motoichi Ohtsu

研究成果: Article査読

21 被引用数 (Scopus)

抄録

We have developed a novel probe with a nanometric metallized protrusion extending through a subwavelength aperture to increase optical near-field excitation and collection efficiencies. The apex diameter of the fabricated metallized protrusion was 35 nm. The Intensity distribution of the optical near-field at the apex of the probe was measured by scanning another probe across the apex, and it was observed that strong optical near-field was generated at the apex of the metallized protrusion. The width of the intensity distribution was 150 nm including instrumental resolution. Probes with spherical and ellipsoidal metallized protrusion were also fabricated, by which enhancement of the optical near-field is expected due to localized plasmon excitation.

本文言語English
ページ(範囲)369-373
ページ数5
ジャーナルOptical Review
5
6
DOI
出版ステータスPublished - 1998 12
外部発表はい

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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