Carrier-to-noise ratio improvement with pulsed-laser readout on magnetically induced superresolution by center aperture detection disks

標題:	Carrier-to-noise ratio improvement with pulsed-laser readout on magnetically induced superresolution by center aperture detection disks
作者:	Chen, BM Yang, BW Hwang, WK Shieh, TE Shieh, HPD 材料科學與工程學系光電工程學系 Department of Materials Science and Engineering Department of Photonics
關鍵字:	carrier to noise ratio (CNR);magnetically induced super-resolution by center aperture detection (MSR-CAD);pulsed-laser readout
公開日期:	1-Sep-1999
摘要:	Magnetically induced superresolution by center aperture detection (MSR-CAD) using pulsed and conventional de schemes were applied to magneto-optical disks to quantitatively evaluate readout performances. By simulation and experiments, it was found that carrier-to-noise ratio (CNR) in the pulsed-laser readout was about 2.5 dB higher than that in the de readout scheme at mark size of 0.45 mu m or shorter, Therefore, pulsed readout is feasible to improve CNR and recording density in MSR-CAD disks.
URI:	http://dx.doi.org/10.1109/20.799087 http://hdl.handle.net/11536/31132
ISSN:	0018-9464
DOI:	10.1109/20.799087
期刊:	IEEE TRANSACTIONS ON MAGNETICS
Volume:	35
Issue:	5
起始頁:	4368
結束頁:	4371
Appears in Collections:	Conferences Paper

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