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Joint International Symposium on Optical Memory and Optical Data Storage最新文献

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Numerical Analysis of Tracking Error on High Density Optical Disks by Vector Diffraction Model 基于矢量衍射模型的高密度光盘跟踪误差数值分析
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.otub.15
Pei-Yih Liu, H. Shieh
{"title":"Numerical Analysis of Tracking Error on High Density Optical Disks by Vector Diffraction Model","authors":"Pei-Yih Liu, H. Shieh","doi":"10.1364/isom.1996.otub.15","DOIUrl":"https://doi.org/10.1364/isom.1996.otub.15","url":null,"abstract":"High density optical disks are progressing rapidly recently. Shrinking the track pitch and the size of recorded pits are among the key technologies to attain higher density storage. However, the decrease in track pitch requires that the tracking servo control system be more precisely than conventional system. Scalar diffraction theory is usually used to calculate the optical readout of conventional optical disk storage system. However, scalar diffraction theory is valid only as long as the wavelength of the incident light is small compared with characteristic transverse dimensions of the scattering structure. As the transverse dimension of track pitch is no longer larger than the wavelength for higher density optical disks, vector diffraction theory1,2 becomes necessary to analyze the optical readout.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123747106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photochemical and Spectroscopic Properties of Naphtacenequinones. Candidates for 3D Optical Memory Devices 萘醌类化合物的光化学和光谱性质。3D光存储器件候选材料
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.otub.8
A. A. Angelutc, A.Yu. Chikisev, N. I. Koroteev, S. A. Magnitskii, Y. Meshalkin, I. Ozheredov, S.Yu. Orzhancev, V.V. Shuhin, N. T. Sokolyuk
{"title":"Photochemical and Spectroscopic Properties of Naphtacenequinones. Candidates for 3D Optical Memory Devices","authors":"A. A. Angelutc, A.Yu. Chikisev, N. I. Koroteev, S. A. Magnitskii, Y. Meshalkin, I. Ozheredov, S.Yu. Orzhancev, V.V. Shuhin, N. T. Sokolyuk","doi":"10.1364/isom.1996.otub.8","DOIUrl":"https://doi.org/10.1364/isom.1996.otub.8","url":null,"abstract":"One of the most perspective ideas of 3D optical memory devices is\u0000 two-photon writing and fluorescence reading [1]. There are many criteria\u0000 of practical application of photochromic materials in optical information\u0000 storage systems. Photochromic material which is considered as a candidate\u0000 for such 3D optical memory devices should possess the following\u0000 properties: high speed of photoreactions, large two-photon cross section;\u0000 high fluorescence quantum yield of the B form, the relatively low quantum\u0000 yield of back (B->A) photochromic reaction, etc. The photochemical and\u0000 thermal stability of both photochromic forms (forms A and B) is necessary\u0000 condition for these materials to be suitable. The naphtacenequinones are\u0000 promising objects due to relatively high stability and high speed of\u0000 phototransformation [2]. We investigated 15 derivatives of\u0000 naphthacenequiones in toluene and different polymer matrices such as\u0000 polystyrene and polymethylmethacrylate.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116031699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Density Phase-Change Recording 高密度相变记录
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.omd.2
B. Jacobs, J. Duchateau
{"title":"High-Density Phase-Change Recording","authors":"B. Jacobs, J. Duchateau","doi":"10.1364/isom.1996.omd.2","DOIUrl":"https://doi.org/10.1364/isom.1996.omd.2","url":null,"abstract":"In recent years the phase-change optical recording technology has advanced remarkably and has become a very attractive alternative to the magneto-optic technology for erasable optical recording systems. In particular, the discovery of rapidly crystallizing material systems such as Ge-Sb-Te and Ag-In-Sb-Te accelerated the realization of a rewritable phase-change optical disc. Last year, the 'PD' system was introduced and in the second half of 1996 Philips et al. will launch the 'CD-Erasable' system, a phase-change technology for data applications, having a high degree of compatibility with the read-only CD-system.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"344 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120977603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Viterbi Decoding Circuit for DVD Players DVD播放机的维特比解码电路
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.othb.5
H. Hayashi, M. Umezawa, H. Kobayashi
{"title":"Viterbi Decoding Circuit for DVD Players","authors":"H. Hayashi, M. Umezawa, H. Kobayashi","doi":"10.1364/isom.1996.othb.5","DOIUrl":"https://doi.org/10.1364/isom.1996.othb.5","url":null,"abstract":"The DVD has the highest recording density in the optical discs of practical use. From such a high density medium, it is difficult to reproduce digital data accurately. We coped with this by developing a Viterbi decoding circuit for DVD players. In the following, we will outline the structure and the efficiency of the Viterbi decoder.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116315651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
90 mm Magneto-Optical Disk Drive 90毫米磁光盘驱动器
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.othd.3
K. Itoh
{"title":"90 mm Magneto-Optical Disk Drive","authors":"K. Itoh","doi":"10.1364/isom.1996.othd.3","DOIUrl":"https://doi.org/10.1364/isom.1996.othd.3","url":null,"abstract":"90 mm magneto-optical disk (3.5” MO), as a large-capacity high-speed\u0000 removable file or a super-floppy for multi-media era, features itself\u0000 not only by high performance, but also by high reliability and wide\u0000 compatibility based on the ISO standards.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127023607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient Thermal Modeling of Optical Disk Recording 光盘记录的高效热建模
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.owc.2
M. Kowarz
{"title":"Efficient Thermal Modeling of Optical Disk Recording","authors":"M. Kowarz","doi":"10.1364/isom.1996.owc.2","DOIUrl":"https://doi.org/10.1364/isom.1996.owc.2","url":null,"abstract":"In order to accurately predict mark shapes on recordable optical disks so that write strategies can be more effectively evaluated and optimized, a model for the temperature distribution is required that takes into account heat flow. Thermal modeling is especially important for high-density recording since heat flow effects become more important as mark densities increase. In a few special cases, it is possible to obtain analytical solutions for the temperature in terms of known functions [1-5]. However, for most situations of practical interest, these solutions are not appropriate and some numerical work is required. A precise determination of mark shapes is then time consuming whether one uses semi-analytical solutions that are in integral form [6-12] or purely numerical methods, such as finite differences [13-16] or finite elements [17,18].","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114137519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High density optical recording on Dye material Disc-Approach for 4.7GB
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.opd.2
E. Hamada, T. Fujii, Yuji Tomizawa, Shinichiro Iimura
{"title":"High density optical recording on Dye material Disc-Approach for 4.7GB","authors":"E. Hamada, T. Fujii, Yuji Tomizawa, Shinichiro Iimura","doi":"10.1364/isom.1996.opd.2","DOIUrl":"https://doi.org/10.1364/isom.1996.opd.2","url":null,"abstract":"Today, DVD is expected as a tomorrow's carrier for mass data of computer as well as for a high quality motion video.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125964955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Land/Groove Recording on Reflective Media 在反射介质上进行陆地/沟槽记录
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.omd.5
R. W. Olson
{"title":"Land/Groove Recording on Reflective Media","authors":"R. W. Olson","doi":"10.1364/isom.1996.omd.5","DOIUrl":"https://doi.org/10.1364/isom.1996.omd.5","url":null,"abstract":"Land/groove optical recording has received much attention because its ability to suppress crosstalk between tracks permits a large track density increase. Here we present a simple vector picture that illustrates physically the crosstalk suppression mechanism for reflective media. It leads by natural extension to a measure of crosstalk that is proportional to the timing jitter of signal transitions, which is important for PWM recording.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121643608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Compact Disc Compatible Digital Video Disc Pickup Using Annular Mask 使用环形掩模的光盘兼容数字视频光盘拾取器
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.ofa.3
Chui Woo Lee, C. Chung, K. Cho, T. K. Kim, Soo-Yul Jung, Byoung-ho Choi, Jang-hoon Yoo, J. Seo, Dong Ho Shin
{"title":"A Compact Disc Compatible Digital Video Disc Pickup Using Annular Mask","authors":"Chui Woo Lee, C. Chung, K. Cho, T. K. Kim, Soo-Yul Jung, Byoung-ho Choi, Jang-hoon Yoo, J. Seo, Dong Ho Shin","doi":"10.1364/isom.1996.ofa.3","DOIUrl":"https://doi.org/10.1364/isom.1996.ofa.3","url":null,"abstract":"Recently, the techniques related to DVD have been developed rapidly. Among these, several techniques[1] are proposed for achieving CD compatible DVD pickup. To reduce aberration, mainly coma, the thickness of the DVD was chosen as 0.6mm which is different from a CD. The thickness difference makes it difficult for the optical pickup which is optimized for the DVD disc, to be compatible with the CD.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123163586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New Focusing Error Detection Method using a Tilted Holographic Optical Element 基于倾斜全息光学元件的聚焦误差检测新方法
Joint International Symposium on Optical Memory and Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/isom.1996.otha.5
K. Mori, Atsushi Tajiri, Y. Inoue, Takenori Gotoh, A. Ibaraki, K. Yodoshi
{"title":"New Focusing Error Detection Method using a Tilted Holographic Optical Element","authors":"K. Mori, Atsushi Tajiri, Y. Inoue, Takenori Gotoh, A. Ibaraki, K. Yodoshi","doi":"10.1364/isom.1996.otha.5","DOIUrl":"https://doi.org/10.1364/isom.1996.otha.5","url":null,"abstract":"Recently, optical units, which integrate an optical disk pickup (excluding the objective lens) in a hybrid system using a holographic optical element (HOE), have been actively investigated with a view to practical use. A small holographic optical unit (HOU) enables the optical pickup to be downsized and lighter in weight. However, the downsizing of the HOU is restricted by the number of terminals which connect the respective photo-diode (PD) elements (generally more than 4-section PDs) and the laser diode (LD) with external circuits.","PeriodicalId":322309,"journal":{"name":"Joint International Symposium on Optical Memory and Optical Data Storage","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123480250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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