OPTICAL RECORDING DEVICE AND OPTICAL RECORDING MEDIUM

摘要

An optical recording device which enables high-density recording onto an optical recording medium, has a large degree of margin in depth of focus, has less risk of damage to the optical recording medium or an optical system, realizes stable recording and reproducing characteristics, and may be easily manufactured. The optical recording device includes an optical recording medium having a lubricant layer on the outermost surface on the incident light side, an optical system including an optical waveguide having a near-field lens or a minute aperture provided in contact with or close to the optical recording medium, and a light source. More preferably, an apodizer is provided on the side of the light source or the side of the near-field lens of a collimating lens located between the near-field lens and the light source. The optical recording medium is constituted by a multilayer body formed by stacking at least a lubricant layer, a recording layer, a dielectric layer, a reflective layer and a substrate in this order.