Study on readout durability of super-RENS disk.
Characteristics essential for the readout durability of a superresolution near-field structure (super-RENS) disk are studied experimentally by using a home-built optical measuring setup and atomic force microscope, based on a simplified PtOx super-RENS disk. The experimental results show that for a super-RENS disk with constant structure and materials, readout signals including transmittance and reflectance vary with changes in bubble shape and size, indicating that the readout durability of the disk has a strong dependence on bubble stability, which is closely related to the thickness of the cover layer, the recording power and readout power, and the mechanical properties of the dielectric layer. Based on our experimental results, the main direction for improving readout durability is also proposed.
National Center for Nanoscience and Technology, No. 2, 1st North Street Zhongguancun, Beijing 100080, China. liuq@nanoctr.cn
Qian
Q
Liu
Toshio
T
Fukaya
Sihai
S
Cao
Chuanfei
C
Guo
Zhuwei
Z
Zhang
Yanjun
Y
Guo
Jingsong
J
Wei
Junji
J
Tominaga
D016250:Compact Disks; D004867:Equipment Design; D019544:Equipment Failure Analysis; D055095:Optics and Photonics / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*