Challenge of Near-Field Recording beyond 50.4 Gbit/in2

Autor:	Shin Masuhara, Koichiro Kishima, Kimihiro Saito, Isao Ichimura, Kenji Yamamoto, Atsushi Iida, Kiyoshi Osato, Yuji Kuroda
Rok vydání:	2002
Předmět:	Micrograph Materials science Physics and Astronomy (miscellaneous) Laser diode business.industry General Engineering General Physics and Astronomy Near and far field Amorphous solid law.invention Optics Gigabit law Transmission electron microscopy Area density business Pitch tracking
Zdroj:	Japanese Journal of Applied Physics. 41:1894-1897
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.41.1894
Popis:	The possibility of an areal density over 50 Gbit/in2 was examined in near-field phase-change recording. The disk structure was optimized to maximize readout signals under the land-and-groove recording condition at a tracking pitch of 160 nm. We also evaluated the signal crosstalk from adjacent tracks. Eye diagrams of 50.4 Gbit/in2 areal density were demonstrated using 1.5 NA optics and a GaN laser diode. The track pitch and linear bit density are 160 nm and 80 nm/bit, respectively. The transmission electron microscope (TEM) micrograph of recorded amorphous marks at an areal density of 50.4 Gbit/in2 is also presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cd088333627f2127b2097d31a09b9ceb https://doi.org/10.1143/jjap.41.1894 Zobrazit plný text záznamu