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- W2020141216 abstract "To increase the data density the spot size must be decreased. This can be achieved by using a laser with asmaller wavelength or by increasing the NA of the objective lens. In either case this reduction in spot sizeleads to tighter tolerances for the optical system. A way to relax the tolerances of the optical system is byusing a two-element lens system in which both lenses are actuated independently.2 It has been shown thatsuch a system is able to compensate for the spherical aberration arising due to disk thickness variations.2A problem is however the small tolerance for disk tilt. Here we present a way to compensate for disk tilt" @default.
- W2020141216 created "2016-06-24" @default.
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- W2020141216 date "1998-09-21" @default.
- W2020141216 modified "2023-09-23" @default.
- W2020141216 title "Tilt-tolerant high-numerical-aperture two-lens objective for optical recording" @default.
- W2020141216 doi "https://doi.org/10.1117/12.322064" @default.
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