TITLE

Nonoptically probing near-field microscopy for the observation of biological living specimens

AUTHOR(S)
Kawata, Yoshimasa; Murakami, Manabu; Egami, Chikara; Sugihara, Okihiro; Okamoto, Naomichi; Tsuchimori, Masaaki; Watanabe, Osamu; Nakamura, Osamu
PUB. DATE
April 2001
SOURCE
Applied Physics Letters;4/9/2001, Vol. 78 Issue 15, p2247
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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.
ACCESSION #
4710495

 

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