JPS6456435A - Wavelength multiple recording material - Google Patents

Wavelength multiple recording material

Info

Publication number
JPS6456435A
JPS6456435A JP63116908A JP11690888A JPS6456435A JP S6456435 A JPS6456435 A JP S6456435A JP 63116908 A JP63116908 A JP 63116908A JP 11690888 A JP11690888 A JP 11690888A JP S6456435 A JPS6456435 A JP S6456435A
Authority
JP
Japan
Prior art keywords
porphin
fluorophenyl
tetra
band
title material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63116908A
Other languages
Japanese (ja)
Other versions
JP2638762B2 (en
Inventor
Noriyuki Kishii
Shinichiro Tamura
Nobutoshi Asai
Koichi Kawakado
Nobuyoshi Seto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Publication of JPS6456435A publication Critical patent/JPS6456435A/en
Application granted granted Critical
Publication of JP2638762B2 publication Critical patent/JP2638762B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/22—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains four or more hetero rings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To enable the super high density recording of the title material by a photochemical hole burning by using the title material in which a photosensi tive substance composed of tetra(fluorophenyl) porphin is uniformly dispersed in an optically transparent dispersion medium. CONSTITUTION:When a laser ray having a prescribed narrow band is projected to tetra(fluorophenyl) porphin which is uniformly dissolved in the transparent dispersion medium in a dilute state and is cooled to a very low temperature, since the laser ray is absorbed only by a molecule having an energy correspond ing to said wavelength, only one hole is generated in an ununiform absorbing band. The extent of multiplexing in the photochemical hole burning is deter mined by how many numbers of independent holes can be formed in an ununiform absorbing band having a band-width. The hole width in tetra (fluorophenyl) porphin becomes narrower than a tetraphenyl porphin having no substituent in a benzene ring. Thus, the multiplexing with the very high grade of the title material enables.
JP63116908A 1987-05-27 1988-05-16 WDM recording material Expired - Lifetime JP2638762B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-128351 1987-05-27
JP12835187 1987-05-27

Publications (2)

Publication Number Publication Date
JPS6456435A true JPS6456435A (en) 1989-03-03
JP2638762B2 JP2638762B2 (en) 1997-08-06

Family

ID=14982667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63116908A Expired - Lifetime JP2638762B2 (en) 1987-05-27 1988-05-16 WDM recording material

Country Status (1)

Country Link
JP (1) JP2638762B2 (en)

Also Published As

Publication number Publication date
JP2638762B2 (en) 1997-08-06

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term