MAGNETOOPTICAL RECORDING ON PT/CO AND GDFECO/TBFECO DISKS USING A GREEN LASER

被引：9

作者：

KANEKO, M ^{[1
]}

SABI, Y ^{[1
]}

ICHIMURA, I ^{[1
]}

HASHIMOTO, S ^{[1
]}

机构：

[1] SONY CORP,RES CTR,HODOGAYA KU,YOKOHAMA,KANAGAWA 240,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1993年 / 29卷 / 06期

关键词：

D O I：

10.1109/20.281295

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Pt/Co multilayer disk and the GdFeCo/TbFeCo double-layer disk have been investigated for high density magneto-optical recording using a low noise and high power green laser. A high C/N ratio of 45 dB at a mark length of 0.4 mu m was obtained for both disks with a track pitch of 0.9 mu m. The results show the possibility of areal densities more than 3 times higher than those of current ISO standard magneto-optical disks. The system noise, the shot noise, and the disk noise were measured experimentally as a function of frequency in order to investigate how to improve the C/N ratio using a green laser.

引用

页码：3766 / 3771

页数：6

共 13 条

[1] RECORDING ON CO/PT MAGNETOOPTICAL DISKS USING A 488-NM WAVELENGTH LASER [J].

HASHIMOTO, S ;

MAESAKA, A ;

OCHIAI, Y .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (09) :5133-5135

[2] CO PT AND CO PD MULTILAYERS AS MAGNETOOPTICAL RECORDING MATERIALS [J].

HASHIMOTO, S ;

OCHIAI, Y .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 88 (1-2) :211-226

[3]

HURST JE, 1992, DEC MAGN OPT REC INT, P86

[4] MULTILAYERED MAGNETOOPTICAL DISKS FOR MAGNETICALLY INDUCED SUPERRESOLUTION [J].

KANEKO, M ;

ARATANI, K ;

OHTA, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1992, 31 (2B) :568-575

[5]

Kozlovsky W. J., 1992, Proceedings of the SPIE - The International Society for Optical Engineering, V1663, P410, DOI 10.1117/12.137570

[6]

KUBOTA S, 1992, P SOC PHOTO-OPT INS, V1499, P314

[7] POLAR MAGNETO-OPTICAL KERR EFFECT AND THE DIELECTRIC TENSOR ELEMENTS OF COFE2-XALXO40.1-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1 IN THE PHOTON ENERGY-RANGE 0.65-LESS-THAN-OR-EQUAL-TO-HV-LESS-THAN-OR-EQUAL-TO-4.5EV [J].

MARTENS, JWD ;

PEETERS, WL ;

NEDERPEL, PQJ ;

ERMAN, M .

JOURNAL OF APPLIED PHYSICS, 1984, 55 (04) :1100-1104

[8]

NAKAOKI A, 1988, SEP P OPT MEM S TOK, P17

[9] STABLE INTRACAVITY DOUBLING OF ORTHOGONAL LINEARLY POLARIZED MODES IN DIODE-PUMPED ND-YAG LASERS [J].

OKA, M ;

KUBOTA, S .

OPTICS LETTERS, 1988, 13 (10) :805-807

[10]

SATO M, 1984, 8TH ANN C MAGN JAP, P143

← 1 2 →