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2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)最新文献

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Two-element objective lens and spherical aberration correction for DVR DVR双元物镜及球差校正
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848026
J. Baartman, J. Aarts, B. Hendriks
{"title":"Two-element objective lens and spherical aberration correction for DVR","authors":"J. Baartman, J. Aarts, B. Hendriks","doi":"10.1109/ODS.2000.848026","DOIUrl":"https://doi.org/10.1109/ODS.2000.848026","url":null,"abstract":"This paper describes the advancement we made in developing objective lenses and actuators for DVR, which we see as the next generation in optical disk recording. Data capacity is primarily determined by the laser wavelength and the numerical aperture (NA) of the objective. In the DVR system, a blue (400 nm) semiconductor laser and a NA=0.85 two-lens objective are used, to achieve a capacity of 22 GB on a single layered optical disk with CD-like dimensions. The disk cover layer is only 0.1 mm thick, to achieve sufficient robustness against optical aberrations (coma) from disk tilt. Cover layer thickness variations result in spherical aberrations. For a user bitrate of 50 Mb/s, the required linear velocity of the track is 9 m/s. Given the manufacturing tolerances of the disk, the accelerations of the track in focus and radial direction can then be computed. Furthermore, there is an optical requirement on the maximum allowable error in spot position relative to the track, resulting in a minimum required bandwidth for focusing and radial tracking (3.6 kHz and 5.0 kHz).","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121578394","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: 1
15 Gbit/inch/sup 2/ areal density optical disk using the DWDD medium with blue LD recording 15gbit /inch/sup 2/面密度光盘，采用DWDD介质，蓝色LD记录
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399340
T. Sakamoto, G. Fujita, Y. Takemoto, Y. Akiyama, S. Imanishi, K. Aratani, M. Kanno, A. Nakaoki
{"title":"15 Gbit/inch/sup 2/ areal density optical disk using the DWDD medium with blue LD recording","authors":"T. Sakamoto, G. Fujita, Y. Takemoto, Y. Akiyama, S. Imanishi, K. Aratani, M. Kanno, A. Nakaoki","doi":"10.1117/12.399340","DOIUrl":"https://doi.org/10.1117/12.399340","url":null,"abstract":"We developed a new layer structure of domain wall displacement detection (DWDD) optimized for a blue laser diode (LD) and confirmed that acceptable characteristics could be obtained. We tested readout and recording with a blue LD on this DWDD disk and confirmed that the jitter did not exceed 15% for bit lengths longer than 0.125 /spl mu/m at the track pitch of 0.35 /spl mu/m. In consideration of the experimental results, we could confirm that a DWDD disk with blue LD readout and recording could be available with an areal density of 15 Gbit/inch/sup 2/ with a jitter criterion of 15%.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127068973","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: 2
Three dimensional recording (3DR) technology 三维记录(3DR)技术
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848009
L. Hesselink
{"title":"Three dimensional recording (3DR) technology","authors":"L. Hesselink","doi":"10.1109/ODS.2000.848009","DOIUrl":"https://doi.org/10.1109/ODS.2000.848009","url":null,"abstract":"In this paper, I discuss a new volumetric recording method capable of achieving ultra-high storage density while leveraging existing surface recording technology, thereby overcoming some of the shortcomings of holographic and layered recording. The three-dimensional recording (3DR) technology uses a novel optical imaging technique to store digital information throughout the third dimension, the depth, of storage media. A grating or plane wave hologram is recorded during a photochemical formatting process of the media in a highly controlled factory environment. Portions of the grating can then be erased during bit writing in the less controlled end-user drive environment with a conventional DVD-type optical stylus. Reading is achieved in the drive by detecting the erased bits with the same optical stylus at reduced laser power.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"346 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132749387","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
19.8 GBytes ROM disc readout using a 0.7 NA single objective lens and a violet laser diode 19.8 gb的ROM光盘读出使用一个0.7 NA单物镜和一个紫色激光二极管
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399371
T. Kondo, A. Hayami, T. Oki, J. Tonami, E. Nakagawa, T. Kojima, M. Itonaga
{"title":"19.8 GBytes ROM disc readout using a 0.7 NA single objective lens and a violet laser diode","authors":"T. Kondo, A. Hayami, T. Oki, J. Tonami, E. Nakagawa, T. Kojima, M. Itonaga","doi":"10.1117/12.399371","DOIUrl":"https://doi.org/10.1117/12.399371","url":null,"abstract":"The performance of the proposed system with the noise reduced ROM optical storage disc and the error feedback (EF)-partial response maximum likelihood (PRML), composed of the error-select type adaptive equalizer and the adaptive Viterbi decoder, is demonstrated. The reproduced signal of the 19.8 GBytes ROM disc shows a sufficient low error characteristic.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132772399","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
Microstructural studies of direct-overwrite (DOW) Ag-In-Sb-Te phase-change optical recording media 直接覆盖(DOW) Ag-In-Sb-Te相变光学记录介质的显微结构研究
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399344
S.J. Price, A. Greer, C. Davies
{"title":"Microstructural studies of direct-overwrite (DOW) Ag-In-Sb-Te phase-change optical recording media","authors":"S.J. Price, A. Greer, C. Davies","doi":"10.1117/12.399344","DOIUrl":"https://doi.org/10.1117/12.399344","url":null,"abstract":"Transmission electron microscopy has been used successfully to investigate the evolution of microstructure and crystalline phase selection during repeated direct-overwriting of Ag-In-Sb-Te phase-change optical recording media. It has been shown that the mark shape is partly determined by the multipulse beam used in writing and crystallization of the edges of the molten area, due to the thermal influence of the following pulse.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130919224","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: 1
Characteristics of gap-induced aberration in solid immersion lens systems 固体浸没透镜系统中间隙引起的像差特性
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.847974
J. Jo, T. Milster, J. K. Erwin
{"title":"Characteristics of gap-induced aberration in solid immersion lens systems","authors":"J. Jo, T. Milster, J. K. Erwin","doi":"10.1109/ODS.2000.847974","DOIUrl":"https://doi.org/10.1109/ODS.2000.847974","url":null,"abstract":"The induced phase changes are quantified by varying air gap width. Experiment shows the shape of the gap-induced aberration is well predicted by our simulation. The aberration is characterized by three parameters. The analyzed solid immersion lens (SIL) system is composed of SIL, gap, and substrate. The air gap induces instrumental polarization aberration due to vector thin-film effects. For larger air gaps the changes of phase increase. The astigmatic spot is explained by the increased aberration. Experiment confirms simulation at 300 nm air gap for LaSFN9 (SIL/substrate).","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133185658","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: 2
New photopolymer materials for holographic data storage 用于全息数据存储的新型光聚合物材料
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848006
A. Tork, P. Pilot, T. Galstian
{"title":"New photopolymer materials for holographic data storage","authors":"A. Tork, P. Pilot, T. Galstian","doi":"10.1109/ODS.2000.848006","DOIUrl":"https://doi.org/10.1109/ODS.2000.848006","url":null,"abstract":"Photopolymer materials have significant advantages making them suitable for applications as holographic data storage media. They provide phase holograms, which are very attractive since they can achieve very high diffraction efficiency. It is often desirable to provide an in-situ recording of holographic recording with different lasers sources. Diffractive optical elements (DOEs) attract great interest and holographic photopolymer dispersed liquid crystals (H-PDLC) are emerging as very promising for these applications. Recently, such materials have been sensitized to be sensitive in the near infrared region of light. The characterization of these materials is an important challenge that can result in a better understanding of the holographic grating formation photochemical process. These steps are important in order to reach the fabrication of more efficient DOEs. Since, these materials have self-developing properties (via free radical photopolymerization), the growth curve of the diffraction efficiency can be monitored as it is being recorded. We are interested in (and we actually study) holographic recording characteristics of our photopolymers, which include diffraction efficiency (in transmission and reflection modes), modulation transfer function, sensitivity, recording linearity, shrinkage, stability, etc. The corresponding details will be reported at the conference meeting.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127898447","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: 6
Direct semiconductor laser readout in optical data storage 光学数据存储中的直接半导体激光读出
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399332
J. Aikio, D. Howe
{"title":"Direct semiconductor laser readout in optical data storage","authors":"J. Aikio, D. Howe","doi":"10.1117/12.399332","DOIUrl":"https://doi.org/10.1117/12.399332","url":null,"abstract":"Extremely small read heads are needed for stacked-disk and small portable optical data storage devices. Our study has revealed several interesting aspects that can be utilized in the design of compact read heads based on direct optical feedback to a laser diode. Experimental confirmation of our theoretical results is in progress.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126932470","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: 9
A static test system for optical data storage media 光学数据存储介质静态测试系统
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848003
A. Euteneuer, D. Huggler, T. Weber
{"title":"A static test system for optical data storage media","authors":"A. Euteneuer, D. Huggler, T. Weber","doi":"10.1109/ODS.2000.848003","DOIUrl":"https://doi.org/10.1109/ODS.2000.848003","url":null,"abstract":"Marks on writable and rewritable optical data storage media are typically created by a thermal process, that is initiated by a focused laser pulse. While for phase-change (PC) media the local heating induces a physical change between the amorphous and the crystalline phase, for magneto-optical (MO) media heating above the Curie temperature allows the reversal of the magnetic moment. These changes result in a change of the intensity or the polarization state of the reflected beam. For development or optimisation of such writable or rewritable layers a system is helpful, that allows to irradiate the media with a pulsed and diffraction limited laser spot, whose pulse power and duration can be modified. Fast photodetectors allow to measure the change of intensity and/or polarization during and after the heating process initiated by the laser, which gives indications for the dynamics of the media.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133117321","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
Various sources of noise in optical data storage systems 光数据存储系统中的各种噪声源
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848008
C. Peng, M. Mansuripur
{"title":"Various sources of noise in optical data storage systems","authors":"C. Peng, M. Mansuripur","doi":"10.1109/ODS.2000.848008","DOIUrl":"https://doi.org/10.1109/ODS.2000.848008","url":null,"abstract":"Noise in optical disk readout has been examined for different polarization of the incident beam. The disk studied is a bare grooved glass substrate. Measurements are done for E/sub /spl par// (parallel to track) and E/sub /spl perp// (tangential to track) polarization, using both differential magneto-optical (MO) readout and phase-change (PC) reflectivity readout. The incident beam of light is focused on the grooved-surface of the bare substrate either through substrate or directly from the air. Experiments reveal that the noise level is dependent on both the state of polarization and on the medium of incidence.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123488965","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
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