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

M. Naya, R. Micheletto, S. Mononobe, Rajagopalan Umamaheswari, M. Ohtsu

研究成果: Article

14 引用 (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.

元の言語English
ページ(範囲)1681-1683
ページ数3
ジャーナルApplied Optics
36
発行部数7
DOI
出版物ステータスPublished - 1997 3 1
外部発表Yes

Fingerprint

salmonella
Optical feedback
Salmonella
feedback control
Feedback control
filaments
near fields
optical microscopes
Imaging techniques
Microscopes
water
Evanescent fields
Water
high resolution
high vacuum
Electron microscopes
electron microscopes
Pixels
pixels
Vacuum

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

これを引用

Near-field optical imaging of flagellar filaments of salmonella in water with optical feedback control. / Naya, M.; Micheletto, R.; Mononobe, S.; Umamaheswari, Rajagopalan; Ohtsu, M.

:: Applied Optics, 巻 36, 番号 7, 01.03.1997, p. 1681-1683.

研究成果: Article

Naya, M. ; Micheletto, R. ; Mononobe, S. ; Umamaheswari, Rajagopalan ; Ohtsu, M. / Near-field optical imaging of flagellar filaments of salmonella in water with optical feedback control. :: Applied Optics. 1997 ; 巻 36, 番号 7. pp. 1681-1683.
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