A method for rapid characterization of DVD multilayer depositions is presented. With a single optical measurement the devised method allows to determine the values of the refractive index (n) and of the extinction coe...
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A method for rapid characterization of DVD multilayer depositions is presented. With a single optical measurement the devised method allows to determine the values of the refractive index (n) and of the extinction coefficient (k) for the wavelength comprised between 400 and 900 nm, and the film thickness. The analysis of these optical and physical properties provides a mean for tracking back possible process deviations in the multilayer sputtering of the DVD-RAM disks.
Magnetic recording now dominates the data, video, and audio storage for both professional and consumer applications. The technology has improved immensely as understanding of the physics of recording and reproducing p...
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ISBN:
(纸本)0819406465
Magnetic recording now dominates the data, video, and audio storage for both professional and consumer applications. The technology has improved immensely as understanding of the physics of recording and reproducing processes is gained. advances in recording materials and processes for fabricating components, especially with the thin film media and heads, have contributed in a major way to extending the performance of magnetic recording technology into different industries. Some examples of magnetic thin films applicating for recording media and heads studied in Information storage Research Centre of Shanghai Jiao Tong University are described.
Recent advances in personal computer technology have made these low-cost platforms quite attractive for the implementation of radiological workstations, particularly in those cases where high throughput is not critica...
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ISBN:
(纸本)0819414603
Recent advances in personal computer technology have made these low-cost platforms quite attractive for the implementation of radiological workstations, particularly in those cases where high throughput is not critical (such as clinical review workstations). In light of this observation, the objectives of this on-going project are threefold: (1) to identify the characteristics and performance specifications that are desirable in a radiological review workstation (within the UCSF PACS architecture), (2) to review current personal computer technology in terms of its ability to support such a workstation, and (3) to design and implement a prototype hardware and software architecture. This paper outlines our progress to data and discusses some of our projections for the near future.
The growing data availability has accelerated the rise of data-driven and data-intensive technologies, such as machine learning, a subclass of artificial intelligence technology. Because the volume of data is expandin...
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The growing data availability has accelerated the rise of data-driven and data-intensive technologies, such as machine learning, a subclass of artificial intelligence technology. Because the volume of data is expanding rapidly, new and improved datastorage methods are necessary. advances in nanophotonics have enabled the creation of disruptive opticaldatastorage techniques and media capable of storing petabytes of data on a single optical disk. However, the needs for high-capacity, long-term, robust, and reliable opticaldatastorage necessitate breakthrough advances in existing optical devices to enable future developments of artificial intelligence technology. Machine learning, which employs computer algorithms capable of self-improvement via experience and data usage, has proven an unrivaled tool to detect and forecast data patterns and decode and extract information from images. Furthermore, machine learning has been combined with physical and chemical sciences to build new fundamental principles and media. The integration of nanophotonics-enabled opticaldatastorage with emerging machine learning technologies promises new methods for high-resolution, accurate, fast, and robust opticaldata writing and reading, as well as the discovery, design, and optimization of nanomaterials and nanostructures with new functionalities for next-generation nanophotonics-enabled opticaldatastorage. In this Perspective, we review advances in nanophotonics-enabled opticaldatastorage and discuss the role of machine learning in next-generation nanophotonics-enabled opticaldatastorage. (c) 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license(http://***/licenses/by/4.0/).
The paper introduces characters of Near Field optical Disc (NFOD) Recording Technique. The paper presents electrical and optical waveguide process problems in corn-shaped optical head of NFOD. it also put forward to t...
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The paper introduces characters of Near Field optical Disc (NFOD) Recording Technique. The paper presents electrical and optical waveguide process problems in corn-shaped optical head of NFOD. it also put forward to the three grades approximate model of ultra-small-size laser firstly and simulate calculations in first-grade approximation of corn-shaped optical head of NFOD. The result give the relation between laser's input current and output power and the near field output light intensity pattern, and it is an important basis for the NFOD optical head design with ultra thin active layer and ultra small spot laser.
The method to measure the apparent reflectivity with gloss meter is applied to the phase-change optical disks before and after initialization process. The apparent reflectivity measurements for relative large area and...
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The method to measure the apparent reflectivity with gloss meter is applied to the phase-change optical disks before and after initialization process. The apparent reflectivity measurements for relative large area and the reflectivity measured by optical pick-up are compared. The apparent reflectivity measurements are proven to enough for the characterization of recording layer. The measurement with gloss meter has several advantages of speed, simple structure, low price and etc.
By all measures, the datastorage industry is one of the most important components of the Information technology (IT) revolution. In recent years, many of the emerging technologies rely heavily on energy transport at ...
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Two approaches have been proposed for achieving 25-50 Gbyte capacity on one side of a 120 mm disc: using a two-element high numerical-aperture (NA) objective and using a dual-layered disc. One of the problems with the...
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The realization of strong interactions between individual photons is a long-standing goal of both fundamental and technological significance. Scientists have known for over half a century that light fields can interac...
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The realization of strong interactions between individual photons is a long-standing goal of both fundamental and technological significance. Scientists have known for over half a century that light fields can interact inside nonlinear optical media, but the nonlinearity of conventional materials is negligible at the light powers associated with individual photons. Nevertheless, remarkable advances in quantum optics have recently culminated in the demonstration of several methods for generating optical nonlinearities at the level of individual photons. Systems exhibiting strong photon-photon interactions enable a number of unique applications, including quantum-by-quantum control of light fields, single-photon switches and transistors, all-optical. deterministic quantum logic, and the realization of strongly correlated states of light and matter.
As the most important RET (Resolution Enhancement technology), OPC (optical Proximity Correction) technology has been widely used in today's IC manufacturing and is still developing very fast both in its principle...
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ISBN:
(纸本)9780819470027
As the most important RET (Resolution Enhancement technology), OPC (optical Proximity Correction) technology has been widely used in today's IC manufacturing and is still developing very fast both in its principle and its practice. In this invited paper, key techniques of OPC are classified and overviewed;progresses of OPC technology in recent years published in major SPIE symposiums are reviewed as well. Recent research results produced by Zhejiang University's team are described and reviewed with highlighting. An OPC tool suite named ZOPC, which has been designed to enable new OPC techniques to be integrated into one platform, is presented. The framework of ZOPC as well as its working scheme is demonstrated with real examples.
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