| 摘要 |
<p>A stack "0" having a recording layer (21) serving to transmit a light beam includes a heat dissipating layer (18), a reflective layer (19), an enhanced layer (20), and the recorded layer (21), which are formed in that order on an intermediate layer (17). The reflective layer (19) is translucent to a light beam while the heat dissipating layer (18) has a thermal conductivity higher than that of the intermediate layer (17) as well as a refractive index higher than or equal to that of the intermediate layer (17) and less than or equal to a refractive index of 3. The thickness of the heat dissipating layer (18) is set to a value within the range of a predetermined condition defined in accordance with a refractive index, the wavelength of the light beam, and a given integer. Thus, an information read/write medium is provided which is configured to unable information to be recorded/reproduced thereon/therefrom as well as to effectively cool a recording layer serving to transmit a light beam.</p> |
