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We present the observation of living specimens with subwavelength resolution by using the nonoptically probing near-field microscopy we have developed recently. In the near-field microscope, the optical field distributions near the specimens are recorded as the surface topography of a photosensitive film, and the topographical distributions are readout with an atomic-force microscopy. Since the near-field microscope does not require the scanning of a probe tip for illumination or detection or scattering of light, it is possible to observe moving biological specimens and fast phenomena. We demonstrate the observation of a moving paramecium and euglena gracilis with subwavelength resolution. The observation of the nucleus inside a euglena cell was also demonstrated. © 2001 American Institute of Physics.
Published in:
Applied Physics Letters
(Volume:78
,
Issue:
15
)
Date of Publication: Apr 2001
- Page(s):
- 2247 - 2249
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.1350965
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 18 June 2009
- Issue Date :
- Apr 2001
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