Share Email Print
cover

Proceedings Paper

Improvement of scanning speed in NSOM-based data storage device
Author(s): Sung-Q Lee; Ki-Bong Song; Eun-Kyung Kim; Jun-Ho Kim; Kang-Ho Park
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Near-field optical storage using cantilever aperture tip is a promising way for next generation optical data storage. To enhance the speed of reading and writing data, gap between tip and media should be controlled fast and precisely within near field region. In this paper, several PZT actuators are analyzed for constructing dual servo control algorithm: coarse actuators (stack PZT, bimorph PZT) for media surface inclination and fine actuator (film PZT) for media surface roughness. Dynamic analysis of stack PZT, bimorph PZT, and film PZT are performed through the frequency response. Based on the frequency response and mathematical model, fast analog controller is designed and experimented. From experimental results, analog control of film PZT is 50 times faster than conventional stage. We get the 0.1 msec over 800nm step.

Paper Details

Date Published: 30 September 2003
PDF: 8 pages
Proc. SPIE 5264, Optomechatronic Systems IV, (30 September 2003); doi: 10.1117/12.515009
Show Author Affiliations
Sung-Q Lee, Electronics and Telecommunications Research Institute (South Korea)
Ki-Bong Song, Electronics and Telecommunications Research Institute (South Korea)
Eun-Kyung Kim, Electronics and Telecommunications Research Institute (South Korea)
Jun-Ho Kim, Electronics and Telecommunications Research Institute (South Korea)
Kang-Ho Park, Electronics and Telecommunications Research Institute (South Korea)


Published in SPIE Proceedings Vol. 5264:
Optomechatronic Systems IV
George K. Knopf, Editor(s)

© SPIE. Terms of Use
Back to Top