| 摘要 |
PURPOSE:To obtain a recording medium having high sensitivity and high resolution, by constituting the medium of a monomolecular film or a built-up film thereof of a chelate ligand molecules having a specified bond capable of trans-cis isomerization to incorporate metal ion or metal atom when ebing irradiated with light and a support for the film. CONSTITUTION:The recording medium comprises, for example, a two-layer built-up film of chelate complex molecules consisting of trans-form chelate ligand molecules 1 provided on a glass base. The medium is immersed in a liquid phase 5 containing metal ions (or metal atoms) 3 contained in a container having a transparent glass plate 6 as a bottom wall, and is irradiated with cis-form isomerizing light 7 such as UV rays and visible rays in a certain pattern to induce photo-isomerization of formula (1) at the irradiated parts, whereby rearrangement into cis-form chelate ligand molecules takes place, and metal ions 3 are incorporated. When the recording medium thus having incorporated the ions 3 therein is taken out and is dried, the reverse isomerization will not occur. Accordingly, the recording medium with information recorded therein can be obtained. The information thus recorded is read by irradiating the medium with light. |
