| 摘要 |
<p>Provided is a recording medium (11) in which a guide layer (12) and a recording layer (13) are laminated, wherein the guide layer is irradiated with guide laser light (LB1) having a wavelength in a range of 630 nm to 680 nm, and the recording layer is irradiated with recording reproduction laser light (LB2) having a wavelength in a range of 400 nm to 410 nm. The guide layer has a laminate structure obtained by laminating a recording film (122), dielectric films (121, 124), and a reflection film (125). The refractive index of the reflection film with respect to guide laser light is smaller than the refractive index of the reflection film with respect to recording reproduction laser light, and the dielectric films have a refractive index of 2.0 or more with respect to the recording reproduction laser light.</p> |
