T.C. Reiley, L.-S. Fan, et al.
Microelectronic Engineering
A near-field optical technique, using a new type of solid immersion lens (SIL), has been developed and applied to the writing and reading of domains in magneto-optic material. The SIL is a truncated glass sphere which serves to increase the numerical aperture of the optical system by n2, where n is the index of refraction of the lens material. Using a SIL made from n=1.83 glass and illuminating with 780 nm light, we have achieved a 317 nm spot size. We have resolved a 500 nm period grating, and written and read 350 nm diameter magnetic domains. The technique should be capable of a 125 nm focused spot size using blue light.
T.C. Reiley, L.-S. Fan, et al.
Microelectronic Engineering
J.C. Suits, D. Rugar, et al.
Journal of Applied Physics
P. Grütter, D. Rugar, et al.
Journal of Applied Physics
H.J. Mamin, R.P. Ried, et al.
INVMTC 1998