Optical probe element, and a recording and reproduction device u

Details Optical probe element, and a recording and reproduction device u Optical probe element, and a recording and reproduction device u

1997-01-27

1999-11-09

Fuller, Benjamin R.

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B41J 247

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059824093

ABSTRACT:
An optical probe element for focusing light from a light source into micro light of a diameter not larger than the diffraction limit, includes a light transmitting flat substrate and an optical probe formed on one of the surfaces of the flat substrate. The optical probe has a substantially conical light transmitting projection, and a reflective film which covers the conical surface of the projection so that the tip of the projection is exposed. The optical probe element enables the optical probe to be formed on the flat substrate using a semiconductor processing technique, thereby achieving efficient mass production of a standardized optical probe element. Thus, a recording and reproduction apparatus using the optical probe element is efficiently mass-produced.

REFERENCES:
patent: 5247392 (1993-09-01), Plies
patent: 5286971 (1994-02-01), Betzig et al.
patent: 5294790 (1994-03-01), Ohta et al.
patent: 5635977 (1997-06-01), Hirokane et al.
Betzig, et al., "Near-Field Optics: Microscopy, Spectroscopy, and Surface Modification Beyond the Diffraction Limit", Science, vol. 257, pp. 189-195, Jul. 1992.
Betzig, et al., "Near-Field Magneto-Optics and High Density Data Storage", Appl. Phys. Lett., vol. 61, No. 2, Jul. 1992.

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