Abstract
A two-zone solid-immersion lens is proposed for use in near-field recording. Two spots are generated. One illuminates the lower flat plane of the disk for reading/writing and the other illuminates the upper pregroovcd plane of the disk for push-pull tracking.
Original language | English |
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Pages (from-to) | 1774-1776 |
Number of pages | 3 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 38 |
Issue number | 3 B |
DOIs | |
State | Published - 1 Dec 1999 |
Keywords
- Near-field optics
- Optical data storage
- Optical pick-up head
- Push-pull tracking
- Solid-immersion lens