O. Koyama, H. Horiguchi, C. Nagura, K. Nishikawa, O. Nagatsuka
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引用次数: 0
Abstract
Practical optics for a cover-layer incident dual-layer disc with an NA=1.45 hemispherical solid immersion lens are designed, using a spherical aberration compensating liquid crystal cell. A hybrid servo system, gap servo for NA >1 and focus servo for NA < 1, is proposed.
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