申请人:Mikoshiba Hisashi
公开号:US20080090174A1
公开(公告)日:2008-04-17
An optical recording medium comprising a substrate having thereon a recording layer containing at least two kinds of dye A and dye B, wherein dye A and dye B satisfy the following conditions (1) and (2): (1) the starting temperature of decomposition is from 150 to 250° C., (2) refractive index n(A) and extinction coefficient k(A) of dye A at the wavelength of recording laser ray, and refractive index n(B) and extinction coefficient k(B) of dye B at the same wavelength satisfy the following expressions:
n
(
B
)/
n
(
A
)>0.7
k
(
B
)/
k
(
A
)>10.