US 6,983,476 B2
Rewritable optical recording medium with ZnO near-field optical interaction layer
Din-Ping Tsai, Taipei (Taiwan); Yu-Hsuan Lin, Taipei (Taiwan); Wei-Chih Lin, Taipei (Taiwan); and Hsun-Hao Chang, Taipei (Taiwan)
Assigned to National Taiwan University, Taipei (Taiwan)
Filed on Jan. 08, 2003, as Appl. No. 10/337,775.
Claims priority of application No. 91207654 U (TW), filed on May 27, 2002.
Prior Publication US 2003/0218969 A1, Nov. 27, 2003
Int. Cl. G11B 7/24 (2006.01)
U.S. Cl. 720—718 20 Claims
OG exemplary drawing
 
1. A rewritable optical recording medium with an ZnO near-field optical interaction layer for discs comprising:
a) a transparent substrate;
b) a first transparent dielectric thin film layer formed on the transparent substrate;
c) a zinc-oxide nano-structured thin film layer formed on the first transparent dielectric thin film layer and selectively causing a localized near-field optical effect;
d) a second transparent dielectric thin film layer formed on the zinc-oxide nano-structured thin film layer;
e) a rewritable recording thin film layer formed on the second transparent dielectric thin film layer; and
f) a third transparent dielectric thin film layer formed on the rewritable recording thin film layer,
wherein the first transparent dielectric thin film layer and the zinc-oxide nano-structured thin film layer are located between the transparent substrate and the rewritable recording thin film layer.