Title:
光情報記録媒体及び2光子吸収材料
Document Type and Number:
Japanese Patent JP5104532
Kind Code:
B2
Abstract:
The invention allows two-photon absorption to occur in response to a short-wavelength light beam. The recording layer (101) of the optical information recording medium (100) of the invention contains, as a two-photon absorbing material, a compound represented by general formula (1) having a hexadiyne structure that includes in the center thereof two acetylene groups connected by a Ã-bond. At the time of information recording where a recording mark (RM) is formed in the recording layer (101), two-photon absorption occurs in response to a condensed, short-wavelength recording light, whereby the recording mark (RM) is formed.
Inventors:
Taka Iwamura
Mitsuaki Oyamada
Daisuke Ueda
Mitsuaki Oyamada
Daisuke Ueda
Application Number:
JP2008124716A
Publication Date:
December 19, 2012
Filing Date:
May 12, 2008
Export Citation:
Assignee:
ソニー株式会社
International Classes:
B41M5/26; G03C1/73; G11B7/24; G11B7/24035; G11B7/244
Domestic Patent References:
| JP5142694A | ||||
| JP2006065963A | ||||
| JP1190494A | ||||
| JP60241928A | ||||
| JP2007091684A |
Other References:
竹松明子;笠間邦彦;荒井重義,共役時アセチレン炭化水素のレーザー光分解とパルス放射線分解,レーザー科学研究(5),日本,理化学研究所,1983年10月25日,5巻,152-157
Attorney, Agent or Firm:
Keiki Tanabe