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

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Multi-beam light source using optical waveguide for optical recording 采用光波导进行光记录的多光束光源
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399343
H. Okumura, K. Arai, N. Kawamura, H. Tokumaru, H. Okuda
{"title":"Multi-beam light source using optical waveguide for optical recording","authors":"H. Okumura, K. Arai, N. Kawamura, H. Tokumaru, H. Okuda","doi":"10.1117/12.399343","DOIUrl":"https://doi.org/10.1117/12.399343","url":null,"abstract":"We have fabricated and tested a multi-beam light source using an optical waveguide. It had an optical output of 12 mW with a propagation efficiency of 30%. The crosstalk between neighboring channels was -17.69 dB. When the output power was increased from 0.5 to 10 mW, the wavefront aberration fell to less than /spl lambda//20. As a result, even when the mode type of the waveguide was multi-mode, it could focus the beam at the optical spot within the diffraction limit. This light source is thus a promising one for optical recording.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"16 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":"121296049","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: 8
High capacity MO media for digital still cameras "iD photo" 用于数码相机的高容量MO介质“iD photo”
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399358
K. Shimazaki, S. Ohnuki, H. Terasaki, Y. Suzuki, Y. Nakajima, Y. Yoda
{"title":"High capacity MO media for digital still cameras \"iD photo\"","authors":"K. Shimazaki, S. Ohnuki, H. Terasaki, Y. Suzuki, Y. Nakajima, Y. Yoda","doi":"10.1117/12.399358","DOIUrl":"https://doi.org/10.1117/12.399358","url":null,"abstract":"A magneto-optical disk system, named iD (intelligent, image) photo disk has been developed as a next generation media for digital still cameras. It has a large recording capacity, 730 MB with a 50.8 mm diameter. It employs the field modulation method for recording and center aperture detection (CAD) type magnetic super resolution for reproducing. The media is designed to decrease the recording field so as to reduce electric power consumption for mobile use.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"39 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":"127403726","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
Digital holographic data storage prototype 数字全息数据存储原型
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848014
K. Curtis
{"title":"Digital holographic data storage prototype","authors":"K. Curtis","doi":"10.1109/ODS.2000.848014","DOIUrl":"https://doi.org/10.1109/ODS.2000.848014","url":null,"abstract":"With the invention of new multiplexing and system techniques combined with a new type of storage material, Bell Labs has made significant strides towards establishing the commercial feasibility of holographic data storage. A density of 48.6 bits//spl mu/m/sup 2/ has been achieved in a photopolymer medium. Materials in hand will result in 5 1/4 inch disks with 125 GB of user capacity, >40 MB/s read rates, random access, and low cost removable media.","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":"125953366","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: 5
Single-beam two-photon-recorded monolithic multi-layer optical disks 单束双光子记录单片多层光盘
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399355
H. Zhang, C. Chapman, E. Walker, N. Kim
{"title":"Single-beam two-photon-recorded monolithic multi-layer optical disks","authors":"H. Zhang, C. Chapman, E. Walker, N. Kim","doi":"10.1117/12.399355","DOIUrl":"https://doi.org/10.1117/12.399355","url":null,"abstract":"Both single and two-beam recording for two-photon monolithic multilayer optical storage are under development at Call/Recall, Inc. The depth resolution using single beam recording is less due to the intensity distribution properties of laser beam. Using short pulse mode-locked Ti:Sapphire laser and narrowed aperture CD lens, a single beam recorded 25-layer fluorescence disk has been demonstrated and evaluated in cross-talk and recorded mark shape. The results indicate designing an optical system with high NA and aberration compensation for different depth is essential for high data capacity using one beam recording. Several potential solutions exist, and preliminary experiments indicate that by simply narrowing the objective aperture, the depth uniformity can be improved without significantly compromising mark size.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"1 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":"130915416","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: 24
Progress in optical disk recording with over 20 GB of capacity 容量超过20gb的光盘记录技术进展
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.847966
K. Osato, I. Ichimura, F. Maeda, K. Yamamoto, Y. Kasami
{"title":"Progress in optical disk recording with over 20 GB of capacity","authors":"K. Osato, I. Ichimura, F. Maeda, K. Yamamoto, Y. Kasami","doi":"10.1109/ODS.2000.847966","DOIUrl":"https://doi.org/10.1109/ODS.2000.847966","url":null,"abstract":"We have developed an optical disk system whose storage capacity and data transfer rate are 22 GB and 35 Mbps, respectively, by using a proto-type pickup with a GaN laser diode as a light source. Measured jitter value of 8.1% at the areal recording density of 16.5 Gbit/in/sup 2/ proves this system to be practical.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"40 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":"133946034","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
Blue phase change recording at high data densities and data rates 高数据密度和数据速率下的蓝色相变记录
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1117/12.399363
M. J. Dekker, N. Pfeffera, M. Kuijpera, B. Tieke, Igolt P. D. Ubbens, W. Coene
{"title":"Blue phase change recording at high data densities and data rates","authors":"M. J. Dekker, N. Pfeffera, M. Kuijpera, B. Tieke, Igolt P. D. Ubbens, W. Coene","doi":"10.1117/12.399363","DOIUrl":"https://doi.org/10.1117/12.399363","url":null,"abstract":"We have shown that fast growth determined materials (FGM) can be used in high density (land-groove) high data rate phase change recording. We applied these materials to the DVR-blue system and developed discs with a total capacity of 22 GB at a user data rate of 51 Mbps. Thermal management of the stacks on these discs, especially by the use of thin metal layers, is an important ingredient.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"20 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":"130982278","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: 14
Simulations of heat generation and conduction on a land/groove disc 陆地/槽盘面上热生成和传导的模拟
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.848007
Y. Nishi, T. Shimano, H. Kando
{"title":"Simulations of heat generation and conduction on a land/groove disc","authors":"Y. Nishi, T. Shimano, H. Kando","doi":"10.1109/ODS.2000.848007","DOIUrl":"https://doi.org/10.1109/ODS.2000.848007","url":null,"abstract":"We applied the finite-difference time-domain (FDTD) method to an optical disc to estimate the energy absorption inside a multi-layered disc with land-and-groove structure. The FDTD method was developed to measure the electromagnetic fields generated by diffraction in a near-field. Afterwards we analyzed the heat conduction. We found that temperature transition depended not only on conductivity but on the initial distribution of the heat and on disc geometry.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"1 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":"131349896","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
Performance comparison of equalization and low-pass coding for holographic storage 全息存储均衡与低通编码的性能比较
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.847998
V. Vadde, B. V. Kumar
{"title":"Performance comparison of equalization and low-pass coding for holographic storage","authors":"V. Vadde, B. V. Kumar","doi":"10.1109/ODS.2000.847998","DOIUrl":"https://doi.org/10.1109/ODS.2000.847998","url":null,"abstract":"We evaluated the comparative use of equalization and low-pass codes to tackle the ISI problem in a 2D-ISI channel, specifically holographic storage channel. We presented PRML equalization results with 6 different low-pass codes having various low-pass constraints. Detailed channel simulations were performed and the SNR gains through equalization or coding were translated into equivalent density gains using standard scaling laws. We showed that equalization tends to perform better than low-pass codes from the standpoint of overall density gain. We found that for both optical noise dominated and electronic noise dominated cases, equalization performs better. This is mostly because the density gains of low-pass codes were usually overwhelmed by the penalty paid in terms of the code-rate.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"21 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":"127192494","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
Mark edge jitter model for phase change recording 标记边缘抖动模型的相变记录
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.847987
A. C. Sheila, T. E. Schlesinger, D. Lambeth
{"title":"Mark edge jitter model for phase change recording","authors":"A. C. Sheila, T. E. Schlesinger, D. Lambeth","doi":"10.1109/ODS.2000.847987","DOIUrl":"https://doi.org/10.1109/ODS.2000.847987","url":null,"abstract":"We model nucleation and grain growth in GeSbTe, and evaluate the jitter based on the randomness of the nucleation process. We consider the case in which an amorphous mark is written on a previously existing amorphous mark. If the previously written amorphous mark was perfectly quenched with no nuclei in it, then we would have all new nuclei followed by their growth. In practice, however, there usually will be some quenched-in nuclei and the number of these will depend on the rate of cooling at the time of formation of the previous amorphous mark. We have studied the effect of these pre-existing nuclei and control of the temperature profile by changing the reflection layer thickness on nucleation, grain growth and jitter.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"3 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":"121143429","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
Advanced recording method using a near-field optics and the GMR head 先进的记录方法使用近场光学和GMR头
2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491) Pub Date : 2000-05-14 DOI: 10.1109/ODS.2000.847971
K. Ito, H. Saga, H. Nemoto, H. Sukeda
{"title":"Advanced recording method using a near-field optics and the GMR head","authors":"K. Ito, H. Saga, H. Nemoto, H. Sukeda","doi":"10.1109/ODS.2000.847971","DOIUrl":"https://doi.org/10.1109/ODS.2000.847971","url":null,"abstract":"Magneto-optical recording media are among the interesting perpendicular media. Such media have a potential for ultra-high-density recording, because the material is amorphous and does not have grain structure. To draw out the potential of magneto-optical recording media, we have proposed a new recording method using thermo-magnetic writing by a focused light and magnetic flux detection for readout. Firstly, we demonstrated that the resolution was substantially improved over that of the latest magneto-optical disk drives by the magnetic flux detection from a bilayered magnetic-exchange-coupled medium. The layers consist of a TbDyFeCo magnetic layer with high flux density on a conventional TbFeCo recording layer.","PeriodicalId":215485,"journal":{"name":"2000 Optical Data Storage. Conference Digest (Cat. No.00TH8491)","volume":"19 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":"126592427","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: 4
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