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Topical Meeting on Optical Data Storage最新文献

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Code Design for Optical Storage - a Comparison to Magnetic Storage 光存储的代码设计——与磁存储的比较
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1985.thaa1
P. Siegel
{"title":"Code Design for Optical Storage - a Comparison to Magnetic Storage","authors":"P. Siegel","doi":"10.1364/ods.1985.thaa1","DOIUrl":"https://doi.org/10.1364/ods.1985.thaa1","url":null,"abstract":"Magnetic recording on disks and tapes has been successfully used for digital data storage for over 25 years. Binary digits (bits) are stored as the presence or absence of magnetization reversals along a track. During readback, the sequence of magnetization transitions induces a corresponding pulse train, from which the recorded bit string is recovered by detection of peak positions relative to time intervals generated by a synchronized clock.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"147 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":"122684230","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
Conductive Polymers as Active Optical Storage Media 导电聚合物作为有源光存储介质
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1987.fa5
W. Gambogi, L. Traynor, E. Buhks
{"title":"Conductive Polymers as Active Optical Storage Media","authors":"W. Gambogi, L. Traynor, E. Buhks","doi":"10.1364/ods.1987.fa5","DOIUrl":"https://doi.org/10.1364/ods.1987.fa5","url":null,"abstract":"Conjugated polymers have been intensively studied in recent years due to their intrinsic conductivity and the wide range over which conductivity can be varied.1 Polypyrrole and polythiophene have received particular attention because these materials are stable in air with conductivity in the range of 102 S/cm.2 While conductivity and weight loss have been determined as a function of temperature,3 analysis of the resultant pyrolized products has not been attempted. Of particular interest is the photothermal and/or photochemical processes which would be initiated by a focused laser beam.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"14 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":"122487247","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 New Tracking Servo Technology 一种新的跟踪伺服技术
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1985.thbb3
S. Arai, K. Hamada, K. Ogawa
{"title":"A New Tracking Servo Technology","authors":"S. Arai, K. Hamada, K. Ogawa","doi":"10.1364/ods.1985.thbb3","DOIUrl":"https://doi.org/10.1364/ods.1985.thbb3","url":null,"abstract":"In the near future, optical disk will find a big market in a field of office automation because of its large capacity and inter changeability, as a replacement for the widely used magnetic tapes and floppy disks.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"214 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":"132161055","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
Present Status and Future Trends in Erasable Optical Memories 可擦光存储器的现状与发展趋势
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1985.tuaa1
Y. Tsunoda
{"title":"Present Status and Future Trends in Erasable Optical Memories","authors":"Y. Tsunoda","doi":"10.1364/ods.1985.tuaa1","DOIUrl":"https://doi.org/10.1364/ods.1985.tuaa1","url":null,"abstract":"During the past few years, several write-once type optical disk file memory products have been introduced to the market and are establishing a stable rising curve of the optical memory era.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"15 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":"127059623","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
The effects of wall stiffness on reproducibility of thermo-magnetically written domains* 壁刚度对热磁写入畴再现性的影响*
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1985.waa4
H. Shieh, M. Kryder
{"title":"The effects of wall stiffness on reproducibility of thermo-magnetically written domains*","authors":"H. Shieh, M. Kryder","doi":"10.1364/ods.1985.waa4","DOIUrl":"https://doi.org/10.1364/ods.1985.waa4","url":null,"abstract":"The reproducibility of thermomagnetically written domains has been studied as a function of writing parameters and intrinsic magnetic parameters of magneto-optic films. Films with higher anisotropy constant, smaller aspect ratio, higher coercivity, and compensation temperature near or above room temperature result in a higher degree of domain reproducibility. It is shown that a wall stiffness model is consistent with the experimental results. Larger wall stiffness makes the domains less deformable from an equilibrium value and consequently results in domains which are more regular in size and shape.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"12 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":"127488164","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
Frequency Domain Optical Storage: The Importance of Photon-Gated Materials 频域光存储:光子门控材料的重要性
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1987.fa3
W. Moerner, R. Macfarlane, W. Lenth
{"title":"Frequency Domain Optical Storage: The Importance of Photon-Gated Materials","authors":"W. Moerner, R. Macfarlane, W. Lenth","doi":"10.1364/ods.1987.fa3","DOIUrl":"https://doi.org/10.1364/ods.1987.fa3","url":null,"abstract":"Persistent spectral hole-burning (PHB, also called photochemical hole-burning) permits use of the optical frequency for encoding digital information through the presence and absence of spectral holes that are burned in inhomogeneously broadened absorption lines at low (liquid helium) temperatures. The optical frequency or wavelength at which a given hole is burned acts as an additional dimension for data storage, hence this optical recording scheme has been called Frequency Domain Optical Storage (FDOS). The combination of spectral and spatial data-recording can make storage densities in excess of 1010 bits/cm2 possible; furthermore, since rotation of the recording medium is not necessary, shorter random access times will result. The future success of the FDOS concept will rely on progress in several technological and engineering areas as well as on advances in several critical materials areas1.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"27 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":"126742717","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
Performance of an Erasable Organic Dye-Binder Optical Disk Medium 一种可擦除有机染料粘合剂光盘介质的性能
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1985.wbb1
M. Gupta, F. Strome
{"title":"Performance of an Erasable Organic Dye-Binder Optical Disk Medium","authors":"M. Gupta, F. Strome","doi":"10.1364/ods.1985.wbb1","DOIUrl":"https://doi.org/10.1364/ods.1985.wbb1","url":null,"abstract":"Write-once optical disks are emerging as an important medium for information storage. They provide high performance (in terms of carrier-to-noise ratio and bit error rates) and long life (~10 years). Extensive work has been published on write-once optical disk media based on organic dye-binder systems. Here we present some performance data for an erasable organic dye-binder optical disk medium.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"45 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":"116895287","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
Methods of Determining Thin Film Stress for Optical Data Storage 光学数据存储用薄膜应力的测定方法
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1987.thd3
N. Thomas
{"title":"Methods of Determining Thin Film Stress for Optical Data Storage","authors":"N. Thomas","doi":"10.1364/ods.1987.thd3","DOIUrl":"https://doi.org/10.1364/ods.1987.thd3","url":null,"abstract":"Thin film stress plays an important role in the manufacture of optical data disks which have a rather low aspect ratio and are very susceptible to deformation. The stress parameter has been shown to be adjustable by varying deposition parameters. More recently, ion assisted reactive evaporation is a deposition technique which has been shown to be useful in controlling stress. The successful application of these techniques requires that that the stress be monitored in situ during the coating process, or by means of a stress monitor disk which is piggybacked in the coating run and measured afterward, or on a sample data disk from the coating run.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"54 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":"121621163","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
Design to minimize aberrations of focusing grating coupler under wavelength shift 减小聚焦光栅耦合器在波长偏移下像差的设计
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1987.fc6
P. Cronkite, G. Lawrence
{"title":"Design to minimize aberrations of focusing grating coupler under wavelength shift","authors":"P. Cronkite, G. Lawrence","doi":"10.1364/ods.1987.fc6","DOIUrl":"https://doi.org/10.1364/ods.1987.fc6","url":null,"abstract":"An optical disk write/read head using integrated optics has been demonstrated by S. Ura et al.1 Figure 1 is a schematic drawing of a typical device.2 The light is emitted from a laser diode at one end of the slab (Point R1). The light is trapped in an optical film on the slab and travels in the form of a guided wave in one dimension. The light is diffracted by a grating which consists of modulation in the depth of the film or variation in the index. One order of the diffracted light comes to a focus at Point R2.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"1 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":"115933454","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
Bit Shift Characteristics in High Density Magneto Optical Recording 高密度磁光记录中的位移特性
Topical Meeting on Optical Data Storage Pub Date : 1900-01-01 DOI: 10.1364/ods.1987.wd3
M. Yamamoto, H. Nakanishi, A. Watabe, S. Hara
{"title":"Bit Shift Characteristics in High Density Magneto Optical Recording","authors":"M. Yamamoto, H. Nakanishi, A. Watabe, S. Hara","doi":"10.1364/ods.1987.wd3","DOIUrl":"https://doi.org/10.1364/ods.1987.wd3","url":null,"abstract":"A crucial factor in high density digital recording in magnetooptical disks is to reduce bit errors caused by bit shifting. Factors affecting bit shift include imperfections in the recorded pit and noise caused by residual signals after erasing, as well as intrinsic media noise and noise inherent in the detection process. Imperfections occur when write power varies or when reflectivity or magnetization fluctuates or varies randomly. Noise caused by residual signals after erasing occurs when the erase power or erase magnetic field is insufficient. This paper investigates the relationship between bit shift and write/erase laser power or erase magnetic field in an attempt to realize high density digital recording.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"33 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":"121877330","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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