Near-field optical imaging of flagellar filaments of salmonella in water with optical feedback control

M. Naya, R. Micheletto, S. Mononobe, R. Uma Maheswari, M. Ohtsu

研究成果: Article査読

14 被引用数 (Scopus)

抄録

We report on the high-resolution observation of biological samples in water with a collection-mode near-field optical microscope (c-mode NOM) operating under optical feedback control. With rapidly decreasing evanescent field power used as the feedback signal, for the first time to our knowledge, an image of straight-type flagellar filaments of salmonella in water has been obtained. The estimated diameter of a single filament is around 55 nm with a pixel size of 10 nm. A comparison with its nominal value of 25 nm obtained from electron microscope observations under high vacuum confirms that our c-mode NOM performs high-resolution imaging in water.

本文言語English
ページ(範囲)1681-1683
ページ数3
ジャーナルApplied Optics
36
7
DOI
出版ステータスPublished - 1997 3月 1
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 工学(その他)
  • 電子工学および電気工学

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