標題: Effects of aperture wall on the readout signal of erasable thermal phase change super resolution (EPSR) disks
作者: Liu, JR
Lu, YS
Tien, CH
Tang, NY
Shieh, HPD
光電工程學系
Department of Photonics
關鍵字: erasable thermal phase change super resolution disk (EPSR);optical super resolution;mask layer;recording layer;below-diffraction-limited aperture;aperture wall;pulse readout
公開日期: 1-Mar-1999
摘要: A "below-diffraction-limited" aperture within the readout spot for high-density recording can be achieved on erasable thermal phase change super resolution (EPSR) disks. Compared to the large aperture wall formed by the DC detection method, the small aperture wall formed by pulse readout can not only increase the signal amplitude, but also suppress readout noise when detecting the EPSR disks. The small aperture wall width generated by pulse readout in the EPSR disk resulted in an 8 dB higher in carrier-to-noise (CNR) than that by DC readout in the conventional single-recording-layer phase change disk when reading the below-diffraction-limited marks of 0.4 mu m.
URI: http://dx.doi.org/10.1143/JJAP.38.1661
http://hdl.handle.net/11536/31474
ISSN: 0021-4922
DOI: 10.1143/JJAP.38.1661
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume: 38
Issue: 3B
起始頁: 1661
結束頁: 1664
Appears in Collections:Conferences Paper


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