Title: Readout scheme by pulsed irradiation center aperture detection on magnetically induced super resolution magnetooptical disks
Authors: Yang, BW
Hwang, WK
Shieh, HPD
交大名義發表
光電工程學系
National Chiao Tung University
Department of Photonics
Keywords: MSR;below-diffraction-limit;MO;pulsed irradiation readout;center aperture detection
Issue Date: 1-Jan-1996
Abstract: Magnetically induced super resolution (MSR) is used to read ''below-diffraction-limit'' recording marks on magneto-optical (MO) media. A nanosecond-order laser pulse irradiated onto MO media can create a quasicircular temperature profile, thereby yielding a quasi-circular sub-mu m aperture to effectively derive a readout signal from sub-mu m marks recorded on the disks. In this study, the pulsed irradiation and conventional DC readout methods are applied to a MO disk with a center aperture detection (CAD) structure to quantitatively evaluate their readout performance. The size and shape of the effective aperture, jitters due to readout parameters; and aperture wall width generated are studied. The feasibility of the pulsed irradiation readout is then assessed.
URI: http://dx.doi.org/10.1143/JJAP.35.419
http://hdl.handle.net/11536/1525
ISSN: 0021-4922
DOI: 10.1143/JJAP.35.419
Journal: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume: 35
Issue: 1B
Begin Page: 419
End Page: 422
Appears in Collections:Conferences Paper


Files in This Item:

  1. A1996UB17400022.pdf