Title:
OPTICAL INFORMATION RECORDING MEDIUM, AND TWO-PHOTON ABSORBING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2009/139479
Kind Code:
A1
Abstract:
Provided is an optical information recording medium (100) capable of performing a two-photon absorbing reaction to a light beam of a short wavelength. The optical information recording medium (100) has a recording layer (101) containing a chemical compound of a hexadiene structure, which is expressed by general formula (1) and which has two acetylene groups bonded at the center by a σ-bond, as a two-photon absorbing material. At the information recording time to form a recording mark (RM) on the recording layer (101), the recording mark (RM) is formed by causing the two-photon absorbing reaction to occur in response to the recording light of the short wavelength to be collected.
More Like This:
| JPH08175004 | RECORDING MATERIAL |
| JPS5621890 | OPTICAL RECORDING MATERIAL |
| JP3170082 | THERMAL RECORDING MATERIAL |
Inventors:
IWAMURA TAKASHI (JP)
OYAMADA MITSUAKI (JP)
UEDA DAISUKE (JP)
OYAMADA MITSUAKI (JP)
UEDA DAISUKE (JP)
Application Number:
PCT/JP2009/059100
Publication Date:
November 19, 2009
Filing Date:
May 11, 2009
Export Citation:
Assignee:
SONY CORP (JP)
IWAMURA TAKASHI (JP)
OYAMADA MITSUAKI (JP)
UEDA DAISUKE (JP)
IWAMURA TAKASHI (JP)
OYAMADA MITSUAKI (JP)
UEDA DAISUKE (JP)
International Classes:
B41M5/26; G03C1/73; G11B7/24; G11B7/24035; G11B7/244
Domestic Patent References:
| WO2004030919A1 | 2004-04-15 | |||
| WO2004022665A1 | 2004-03-18 |
Foreign References:
| JPS61203448A | 1986-09-09 | |||
| JP2006022025A | 2006-01-26 |
Other References:
REZA KAGAKU KENKYU, vol. 5, 1983, pages 152 - 157, XP008118311
See also references of EP 2287007A4
See also references of EP 2287007A4
Attorney, Agent or Firm:
TANABE, Shigemoto (6-4 Osaki 3-chome, Shinagawa-ku, Tokyo 32, JP)
Download PDF: