Write-once optical data storage media for shorter wavelengths using aluminium-silver compound metal island films

Author

Baba, K. ; Ohkuma, Y. ; Miyagi, M.

Author_Institution

Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan

Volume

36

Issue

5

fYear

2000

fDate

3/2/2000 12:00:00 AM

Firstpage

453

Lastpage

454

Abstract

Aluminium (Al)-silver (Ag) compound metal island (CMI) films fabricated by using a two-step evaporation method have been realised for use as write-once (WO) optical data storage media for shorter wavelengths. The Al-Ag CMI films have a high reflectance for blue light as the resonance wavelength exists in the 450-500 nm range. It has been experimentally confirmed that the reflectance of the Al-Ag CMI film is significantly reduced by heating at a temperature of >200°C. This suggests that the Al-Ag CMI films may be useful as WO media for shorter wavelengths with larger storage density

Keywords

aluminium; discontinuous metallic thin films; optical fabrication; optical films; optical storage; reflectivity; silver; storage media; vapour deposition; write-once storage; 200 C; 450 to 500 nm; Al-Ag CMI film; Al-Ag CMI films; AlAg; WO media; aluminium-silver compound metal island films; blue light; heating; high reflectance; larger storage density; optical fabrication; reflectance; resonance wavelength; two-step evaporation method; write-once optical data storage media;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20000325

Filename

840096