Abstract

Gold (Au), silver (Ag), copper (Cu), and aluminum (Al) island films have been investigated for write-once optical data storage media with the high reflectance and the large reflectance changes induced by laser irradiation. We show that, of the four,the Ag and the Cu island films are the most useful as WO media at 800 nm. The Al island films are useful for a shorter wavelength region. The optical and structural changes in laser-written regions on the island films have also been investigated experimentally. It appears that the metal-island films show great potential as optical data storage media for compact-disk-compatible write-once optical disks.

© 1997 Optical Society of America

Silver-based compound metal island films for write-once optical data-storage media

Kazutaka Baba, Yasuharu Ohkuma, Takeshi Yonezawa, and Mitsunobu Miyagi
Appl. Opt. 40(16) 2796-2804 (2001)

Thermal properties and crystallization dynamics of a phase-change alloy for write-once optical data storage

Gerd M. Fischer, Brian Medower, Robert Revay, and Masud Mansuripur
Appl. Opt. 41(10) 1998-2007 (2002)

Optical and magneto-optical properties of copper–nickel compound metal island films

Kazutaka Baba, Fumiaki Mizuno, Fuminori Takase, and Mitsunobu Miyagi
Appl. Opt. 37(1) 98-102 (1998)

Multifrequency three-dimensional optical read-only memory disks using metallic island films: preliminary experiments

Kazutaka Baba, Ritsuko Yamada, Shigeharu Nakao, and Mitsunobu Miyagi
Appl. Opt. 32(17) 3137-3143 (1993)

Resonance wavelengths of silver–gold compound metal island films

Kazutaka Baba, Toshiaki Okuno, and Mitsunobu Miyagi
J. Opt. Soc. Am. B 12(12) 2372-2376 (1995)