Title :
A high numerical aperture solid immersion lens magneto-optical recording system
Author :
Chekanov, A. ; Birukawa, M. ; Itoh, Y. ; Suzuki, T.
Author_Institution :
Toyota Technol. Inst., Nagoya, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
A high numerical aperture solid immersion lens (SIL MO) magneto-optical recording system based on supersphere SIL approach is described. Effects of SIL on the recording performance of the magneto-optical system are analyzed. It is found that effective numerical aperture as high as 1.46 can be achieved using a contact SIL operation mode and evanescent coupling optimized TbFeCo recording media. A novel quadrilayer media design with CNR value of 50 dB is proposed
Keywords :
cobalt alloys; iron alloys; magneto-optical recording; terbium alloys; CNR value; TbFeCo; contact SIL operation mode; effective numerical aperture; evanescent coupling optimized TbFeCo recording media; high numerical aperture solid immersion lens magneto-optical recording system; quadrilayer media design; recording performance; supersphere SIL approach; Apertures; Lenses; Magnetooptic effects; Magnetooptic recording; Optical crosstalk; Optical films; Optical modulation; Optical recording; Optical surface waves; Solids;
Journal_Title :
Magnetics, IEEE Transactions on
