Dual-Layer Rewritable Phase-Change Recording Media for HD DVD System

Autor:	Naoki Morishita, Takayuki Tsukamoto, Nobuhisa Yoshida, Sumio Ashida, Keiichiro Yusu, Kazuyo Umezawa, Naomasa Nakamura, Katsutaro Ichihara, Tsukasa Nakai, Noritake Ohmachi
Rok vydání:	2004
Předmět:	Materials science business.industry General Engineering General Physics and Astronomy Substrate (electronics) GeSbTe Laser law.invention Numerical aperture Wavelength chemistry.chemical_compound Optics chemistry law business Optical disc Beam (structure) Groove (music)
Zdroj:	Japanese Journal of Applied Physics. 43:4987
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.43.4987
Popis:	We have investigated the recording characteristics of the dual-layer phase-change recording media for a system that uses the blue-violet laser (wavelength of 405 nm), with the numerical aperture of 0.65 and light incidence on 0.6-mm-thick substrate having the land and groove format (HD DVD). In order to achieve higher storage density for its beam spot size, a number of technologies have been incorporated into the media, such as the bismuth-substituted pseudobinary GeSbTe alloy recording film and hafnium oxide-based interface layer material. The feasibility of the user capacity of 36 GB has been successfully demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::004365e5b921c0392b937ee18577ed45 https://doi.org/10.1143/jjap.43.4987 Zobrazit plný text záznamu