Durable write-once optical disk memories for 800 nm using silver island films

Durable write-once optical disk memories for 800 nm using silver island films

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Durable write-once (WO) optical disk media have been demonstrated by using silver island films with a protection layer of fluorine-contained polymers. The reflectance of the silver island films is high at the wavelength of 800 nm and can be greatly lowered by laser irradiation, owing to the thermal deformation of the islands. Laser writing has been experimentally confirmed at almost the same line speed as that of compact discs (CDs). Therefore it is expected that a CD-compatible write-once optical disc can be realised.


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      • K. Baba , K. Hiyashi , M. Miyagi . Laser writing of submicrometre lines on copper island films. Electron. Lett. , 1948 - 1949
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      • V.B. Jipson , H.N. Lynt , J.F. Graczyk . Laser writing on discontinuous metal films. Appl. Phys. Lett. , 27 - 29
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      • Baba, K., Hiyashi, K., Miyagi, M.: `Silver island films for write-once optical storage media', TuD6-2, OSA Optical Data Storage Topical Meeting, 16–18 May 1994, Dana Point, USA.

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