| 摘要 |
<p>An optical information reproduction method is used for an optical information record medium comprising a recording layer with recorded information and a masking layer disposed close to the record medium and including a nonlinear optical material the optical characteristics of which vary with the intensity of incident light. This optical information reproduction method comprises the step of irradiating the optical record medium with a converged light polarizing in a first direction and the step of separating reflected light from the optical record medium into a first component polarizing in the first direction and second component polarizing in a second direction orthogonal to the first direction. A reproduction signal is sensed by the second polarized component separated in this way.</p> |
