Title :
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
fDate :
3/2/2000 12:00:00 AM
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000325
