Integrated near-field optical head for hybrid recording

Yi Chiu; Meng-Yu Wu; Han-Ping D. Shieh; Yi Ting Sun; Hsueh-Liang Chou; Wensyang Hsu

doi:10.1117/12.498721

24 April 2003 Integrated near-field optical head for hybrid recording

Yi Chiu, Meng-Yu Wu, Han-Ping D. Shieh, Yi Ting Sun, Hsueh-Liang Chou, Wensyang Hsu

Proceedings Volume 5116, Smart Sensors, Actuators, and MEMS; (2003) https://doi.org/10.1117/12.498721
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain

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.

Citation Download Citation

Yi Chiu, Meng-Yu Wu, Han-Ping D. Shieh, Yi Ting Sun, Hsueh-Liang Chou, and Wensyang Hsu "Integrated near-field optical head for hybrid recording", Proc. SPIE 5116, Smart Sensors, Actuators, and MEMS, (24 April 2003); https://doi.org/10.1117/12.498721

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