We design a superparaboloidal solid immersion mirror (SP-SIM) using a tilt paraboloidal mirror and total internal reflection for application to the optical flying head for near-field recording. The design parameters are optimized in terms of the symmetric beam intensity on the high-numerical-aperture focusing system. Since the SP-SIM has two functions, namely, as an objective lens and a folding mirror, the height and weight of the optical flying head can be reduced.
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Kim et al. (2004) studied this question.
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