Super-resolution by elliptical bubble formation with PtOx and AgInSbTe layers

被引:84
作者
Kim, J [1 ]
Hwang, I
Yoon, D
Park, I
Shin, D
Kikukawa, T
Shima, T
Tominaga, J
机构
[1] Samsung Elect Co Ltd, Digital Media R&D Ctr, Suwon 442742, South Korea
[2] TDK Corp, Informat Technol Res Ctr, Saku, Nagano 3850009, Japan
[3] Natl Inst Adv Ind Sci & Technol, Lab Adv Opt Technol, Tsukuba, Ibaraki 3058563, Japan
关键词
D O I
10.1063/1.1605794
中图分类号
O59 [应用物理学];
学科分类号
摘要
The recording and retrieval of signals below 100 nm mark length were attempted with elliptical bubble-type super-resolution technology with platinum oxide (PtOx) and ductile AgInSbTe layers, using the same optical system as that of a digital versatile disk (a 635 nm wavelength red laser system). The carrier-to-noise ratio (CNR) of over 47 dB for 100 nm mark length signals (over 43 dB for 80 nm mark length signals) was obtained, which can be considered as a commercially acceptable level of CNR. The recording mechanism of the sample disk was shown through the transmission electron microscopy cross-section image observation to be by rigid elliptical bubble formation at the PtOx layer located between the AgInSbTe layers. The results of this report represent the potential for a much higher-density storage using the red laser system and a subterabyte optical storage using the blue laser system. (C) 2003 American Institute of Physics.
引用
收藏
页码:1701 / 1703
页数:3
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