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Proceedings Paper

Integrated near-field optical head for hybrid recording
Author(s): Yi Chiu; Meng-Yu Wu; Han-Ping D. Shieh; Yi Ting Sun; Hsueh-Liang Chou; Wensyang Hsu
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Paper Abstract

As the recording density of longitudinal magnetic storage increases at a 100% annual growth rate, it will soon approach the superparamagnetic limit where the thermal energy at room temperature starts to induce thermal instability to the grains in the small recorded marks. Thermal magnetic recording schemes, such as those used in magneto-optical recording, help alleviate the problems with the superparamagnetic limit. Recently, a hybrid recording system was proposed where data were recorded thermal magnetically on a magneto-optical disk and read back with a GMR head. In this paper, we propose an integrated planar read that combines an optical fiber lens, a solid immersion lens, a sub wavelength aperture, a micro coil, an air bearing surface, and a GMR head for such a hybrid recording system. Preliminary fabrication and calculation are discussed.

Paper Details

Date Published: 24 April 2003
PDF: 7 pages
Proc. SPIE 5116, Smart Sensors, Actuators, and MEMS, (24 April 2003); doi: 10.1117/12.498721
Show Author Affiliations
Yi Chiu, National Chiao Tung Univ. (Taiwan)
Meng-Yu Wu, National Chiao Tung Univ. (Taiwan)
Han-Ping D. Shieh, National Chiao Tung Univ. (Taiwan)
Yi Ting Sun, National Chiao Tung Univ. (Taiwan)
Hsueh-Liang Chou, National Chiao Tung Univ. (Taiwan)
Wensyang Hsu, National Chiao Tung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 5116:
Smart Sensors, Actuators, and MEMS
Jung-Chih Chiao; Vijay K. Varadan; Carles Cané, Editor(s)

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