Share Email Print
cover

Proceedings Paper

Next generation storage technology in magnetic and optical recording system
Author(s): Young-Pil Park; Kyoung-Su Park; No-Cheol Park
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Recently, in the magnetic recording, head assisted magnetic recording (HAMR) and patterned media (PM) technology have been considered as strong candidates to achieve the high recording density beyond the super-paramagnetic limit. Using E-beam recording (EBR) and UV nano-imprinting, the PM with nano-scale pitches and tracks is fabricated effectively and delicately. And the optical throughput of the HARM system is improved by optimizing the grating and the media geometry. In the optical storage, next generation technologies are the near filed recording (NFR) and the holographic recording. The modified NFR gap servo mechanism is developed and clearance of 30nm is uniformly maintained. In addition, the anti-shock servo algorithm resists against the external shock of over 2G@10ms. The advanced holographic system compensates the errors from disturbance by finding the max intensity angle with back propagation algorithm for angle direction and shifting the reference beam with glass plate controlled by a servo motor for fractal direction.

Paper Details

Date Published: 20 March 2009
PDF: 8 pages
Proc. SPIE 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 712502 (20 March 2009); doi: 10.1117/12.824234
Show Author Affiliations
Young-Pil Park, Yonsei Univ. (Korea, Republic of)
Kyoung-Su Park, Yonsei Univ. (Korea, Republic of)
No-Cheol Park, Yonsei Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7125:
Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage
Fuxi Gan, Editor(s)

© SPIE. Terms of Use
Back to Top