Zobrazeno 1 - 10 of 12 pro vyhledávání: '"Ikuto Sugiyama"'
1
Improvements of Resolution and Surface Roughness using Alkaline Treatment of Photoresist Surface in High-Density Optical Disk Mastering
Autor: Masahiko Sekiya, Tomokazu Umezawa, Ikuto Sugiyama
Publikováno v: Japanese Journal of Applied Physics. 42:1618-1622
In the next-generation optical disk using blue laser diodes, the track pitch will be reduced to 0.3 µm, that is about half of the track pitch of digital versatile disks. To realize such high-density optical disks, it is important to develop a high-d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23a11b90fb1cfb7f1acfcf6df59e322d
https://doi.org/10.1143/jjap.42.1618
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2
UV Laser Mastering with a Multilayer Coating Method Producing Land/Groove Type of Optical Disk with Track Pitch of 0.3 µm or Less
Autor: Ikuto Sugiyama, Tomokazu Umezawa, Masahiko Sekiya
Publikováno v: Japanese Journal of Applied Physics. 41:7380-7385
The possibility of realizing grooves with the track pitch of 0.3 µm land/groove or less by using UV laser mastering with a multilayer coating (MLC) method was investigated. By using the MLC method, the profile and the wall roughness of grooves were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81e4cc29da4f528a3cfc08660a8abd8e
https://doi.org/10.1143/jjap.41.7380
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3
High-Density Optical Disk Mastering Using Multilayer Coating Method
Autor: Ikuto Sugiyama, Eiichi Fujii, Hideaki Yamada, Tomokazu Umezawa, Hiroyasu Kaseya
Publikováno v: Japanese Journal of Applied Physics. 41:1709-1713
For the next-generation optical disk system using blue laser diodes, a capacity of more than 20 GB with a compact disk size is required. To realize such high-density optical disk systems, it is very important to develop a high-density mastering techn
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05ad001437fb4ef32d758b10a2711fb0
https://doi.org/10.1143/jjap.41.1709
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4
Crystal Structure of Oxygen/Nitrogen-Doped GeSbTe Phase-Change Media: Investigation Using Grazing Incidence X-ray Diffraction
Autor: Aya Takase, Atsushi Ebina, Ikuto Sugiyama, Masao Hirasaka, Go Fujinawa
Publikováno v: Japanese Journal of Applied Physics. 41:2189-2190
The effects of oxygen- and nitrogen-dopings on the crystal structure of GeSbTe recording layers of phase-change media were studied by X-ray diffraction. A high resolution grazing incidence X-ray diffraction optics using a laboratory X-ray source was
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe1a9f1baec2cf17dc95a72cd22580a6
https://doi.org/10.1143/jjap.41.2189
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5
Effect of ZnS Adhesion Layer on Overwrite Cyclability of Phase Change Optical Recording Media
Autor: Atsushi Ebina, Jun Isemoto, Go Fujinawa, Masao Hirasaka, Ikuto Sugiyama, Aya Takase
Publikováno v: Japanese Journal of Applied Physics. 40:1569
A high-performance phase change optical recording disk, which has a five-layered structure, was proposed. This disk has a ZnS adhesion layer between a GeSbTe recording layer and a ZnS–SiO2 second dielectric layer. A 2×105 overwrite cyclability was
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51ab39fbe54d4e146472d62149c6cbd0
https://doi.org/10.1143/jjap.40.1569
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7
Population Density and LTE of Excited Atoms in a Positive-Column Plasma I. Calculation on Hydroegn
Autor: Kuniya Fukuda, Ikuto Sugiyama, Kunihide Tachibana, Takashi Fujimoto, Yoshiro Ogata
Publikováno v: Japanese Journal of Applied Physics. 11:718-725
Collisional-radiative model is applied to hydrogen plasma in a positive column and it is shown that as electron density increases in plasma, population density of an excited level goes, in general, along coronal and quasi- and full-saturation phases
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63de67f698aaf79ff6a2011b076a9406
https://doi.org/10.1143/jjap.11.718
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9
Stepwise Excitation and Local Thermodynamic Equilibrium on Excited Hydrogen Levels in Helium-Hydrogen Plasma behind Shock Front
Autor: Kuniya Fukuda, Ikuto Sugiyama, Rei Okasaka
Publikováno v: Journal of the Physical Society of Japan. 35:1202-1211
The calculation is carried out on the ionization relaxation as well as on the time developments of population densities of excited hydrogen levels for helium-atomic hydrogen mixtures (H: 0∼3 atomic %) behind the reflected shock front under the cond
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0862440d63bfb91da68d0001941fa862
https://doi.org/10.1143/jpsj.35.1202
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