Title :
Air gap dependence of write and read characteristics in magneto-optical recording with solid immersion lens
Author :
Kawano, H. ; Chekanov, A. ; Matsumoto, K. ; Ozaki, K.K. ; Sbiaa, R. ; Suzuki, T.
Author_Institution :
Fujitsu Labs. Ltd., Akashi, Japan
fDate :
7/1/2001 12:00:00 AM
Abstract :
A near-field MO recording was done at a wavelength of 680 nm using a super-hemispherical solid immersion lens (SIL) flying head. The SIL optical system has a designed NA of 1.46. The SIL can write and read marks to a minimum length of about 0.15 μm. The optical readout characteristic with the SIL is not very sensitive to air gaps if the air gaps are kept below about 130 nm
Keywords :
air gaps; magneto-optical recording; storage media; 0.15 micron; 130 nm; 680 nm; SIL flying head; SIL optical system; air gap dependence; flying height; magneto-optical recording; optical readout characteristic; read characteristics; solid immersion lens flying head; write characteristics; Glass; Lenses; Magnetooptic effects; Magnetooptic recording; Optical recording; Optical refraction; Optical sensors; Optical surface waves; Optical variables control; Solids;
Journal_Title :
Magnetics, IEEE Transactions on
