Integrated near-field optical head for hybrid recording

Yi Chiu*, M. Wu, H. P.D. Shieh, Y. T. Sun, H. L. Chou, W. Hsu

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


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 head 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.

Original languageAmerican English
Pages (from-to)205-211
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5116 I
StatePublished - 22 Sep 2003
EventSmart Sensors, Actuators, and MEMS - Maspalonas, Gran Canaria, Spain
Duration: 19 May 200321 May 2003


  • Air bearing surfaces
  • Fiber lens
  • Hybrid recording
  • Micro coil
  • Near-field recording
  • Solid immersion lens
  • Sub-wavelength aperture


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