| abstract |
There is provided an optical memory medium comprising a flat plate modified on the surface thereof by a photolytic residual group, an optical recording apparatus comprising an optical probe having a microscopic aperture on the leading end thereof, a light source, X-Y-Z position control means, and a controller for controlling the apparatus as whole and an apparatus for reading the optical memory medium comprising the optical memory medium, a friction detecting probe, an X-Y-Z position control means and a controller for controlling the apparatus as a whole. Further, information is written and read with high density less than the wavelength of light using an apparatus for writing to and reading from an optical memory piezoelectric medium comprising the optical memory piezoelectric medium constituted by a piezoelectric element modified on the surface thereof by a photolytic residual group, an optical probe having a microscopic aperture on the leading end thereof, a light source, an X-Y-Z position control means, a means for measuring the resonance characteristics of the piezoelectric element and a controller for controlling the apparatus as a whole. |