INFORMATION RECORDING/REPRODUCING DEVICE AND PHASE TRANSITION AMORPHOUS MARK OBSERVATION DEVICE

摘要

PROBLEM TO BE SOLVED: To reproduce information recorded on a surface type phase transition recording medium with a sharp contrast.;SOLUTION: A near field light is radiated on a recording layer 13 of a phase transition recording medium 2 provided with a multilayer structure including the record layer 13 on a substrate 10, and information is recorded on the recording layer 13. A polarization plane of a laser beam made incident on an optical probe 6 which reproduces the information recorded on the recording layer 13 is controlled by a polarization plane control section 5 and the incidence of a disturbing reflected light on the recording layer 13 is prevented. By recording the information with high density on the recording layer 13 and enhancing the contrast between a recording part of a reproduced signal and a unrecorded part with the above measures, information recorded with high density is reproduced with high accuracy.;COPYRIGHT: (C)2003,JPO