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International Conference on advances in Computer and Electrical Engineering(ICACEE’2012);International Conference on Electronics Engineering & Its Applications(ICEEA’2012);International Conference on Trends in Mechanical and Production Engineering(ICTMPE’2012);International Conference on Agriculture technology and Food Sciences(ICATFS’2012);International Conference on Chemical,Environment and Civil engineering(ICCECE’2012);International Conference on Literature,Management and Education(ICLME’2012)

作者： Shashidharan.M Pradeepkumar Shapeti Rakesh.M.R Shabeen Taj G.A VTU University Computer Science and Engineering Dept. AMC Engineering college

A Cloud computing system provides infrastructure layer services to users by managing virtualized infrastructure resources. Intelligent Automation for Cloud is a self-service provisioning and orchestration software solution for cloud computing and data center automation. It helps enable secure, on-demand, and highly automated IT operations for both virtual and physical infrastructure across compute, network, storage, and applications. Cloud computing is set of resources and services offered through the Internet. Cloud services are delivered from data centers located throughout the *** infrastructure resources include CPU, hypervisor, storage, and networking. Each category of infrastructure resources is a subsystem in a cloud computing system. The cloud computing system coordinates infrastructure subsystems with to provide services to users. A cloud computing system should have the flexibility to switch from one infrastructure subsystem to another and one decision algorithm to another with *** against disasters both natural and deliberate attacks, and spanning large geographical areas-is becoming a major challenge in communication network

关键词： Cloud computing labeled optical burst switching with home circuit (LOBS-HC) datacenter wavelength division multiplexing (WDM) Large Synoptic Survey Telescope (LSST).

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Plasmon nano-optical tweezers

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NATURE PHOTONICS 2011年第6期5卷 349-356页

作者： Juan, Mathieu L. Righini, Maurizio Quidant, Romain ICFO Inst Ciencies Foton Barcelona 08860 Spain ICREA Barcelona 08010 Spain

Conventional optical tweezers, formed at the diffraction-limited focus of a laser beam, have become a powerful and flexible tool for manipulating micrometre-sized objects. Extending optical trapping down to the nanometre scale would open unprecedented opportunities in many fields of science, where such nano-optical tweezers would allow the ultra-accurate positioning of single nano-objects. Among the possible strategies, the ability of metallic nanostructures to control light at the subwavelength scale can be exploited to engineer such nano-optical traps. This Review summarizes the recent advances in the emerging field of plasmon-based optical trapping and discusses the details of plasmon tweezers along with their potential applications to bioscience and quantum optics.

关键词： nature photonics Nature Photonics nature publishing group content journal optoelectronics optics biophotonics quantum optics cryptography spectroscopy terahertz technology light propagation lasers LEDs photovotaics fibre optics optical data storage

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Reduction of zero-order spatial frequencies by using binary intensity and phase modulations in holographic data storage

Reduction of zero-order spatial frequencies by using binary ...

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Conference on Holography - advances and Modern Trends II

作者： Fernandez, Elena Marquez, Andres Pinol, Diego Padilla, Javier Pascual, Inmaculada Univ Alicante Dept Opt Farmacol & Anat Apartado 99 E-03080 Alicante Spain Univ Alicante Dept Fis Ingn Sistemas & Teor Senal E-03080 Alicante Spain

ISBN: (纸本)9780819486646

Holographic data storage is a new optical technology which allows storing an important number of bits in a recording material. In this work, two different types of modulations, defocused binary intensity modulation and phase modulation, are compared to obtain which modulation could be the most suitable for holographic data storage. The best modulation would be the modulation with a homogeneous distribution of energy in the FT plane with no zero frequency peak.

关键词： Holographic data storage LCD modulations

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advances in quantum metrology

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NATURE PHOTONICS 2011年第4期5卷 222-229页

作者： Giovannetti, Vittorio Lloyd, Seth Maccone, Lorenzo Scuola Normale Super Pisa NEST I-56126 Pisa Italy CNR Ist Nanosci I-56126 Pisa Italy MIT Elect Res Lab Cambridge MA 02139 USA MIT Dept Mech Engn Cambridge MA 02139 USA Univ Pavia Dip Fis A Volta Ist Nazl Fis Nucl Sez Pavia I-27100 Pavia Italy

The statistical error in any estimation can be reduced by repeating the measurement and averaging the results. The central limit theorem implies that the reduction is proportional to the square root of the number of repetitions. Quantum metrology is the use of quantum techniques such as entanglement to yield higher statistical precision than purely classical approaches. In this Review, we analyse some of the most promising recent developments of this research field and point out some of the new experiments. We then look at one of the major new trends of the field: analyses of the effects of noise and experimental imperfections.

关键词： Imaging and sensing Fundamental optical physics Quantum optics nature photonics Nature Photonics nature publishing group content journal optoelectronics optics biophotonics quantum optics cryptography spectroscopy terahertz technology light propagation lasers LEDs photovotaics fibre optics optical data storage

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Synthesis and Properties of a Blue Photochromic Diarylethene Derivative

Synthesis and Properties of a Blue Photochromic Diarylethene...

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International Conference on advances in Materials and Manufacturing Processes

作者： Liu, Weijun Zhang, Caimei Pu, Shouzhi Cui, Shiqiang Jiangxi Sci & Technol Normal Univ Jiangxi Key Lab Organ Chem Nanchang Peoples R China

ISBN: (纸本)9780878492053

A new blue photochromic diarylethene compound, 1-[2-methyl-5-aldehydeyl-3-thienyl]-2-[1,2-dimethyl-5-cyanoyl-3-pyrroleyl]perfluorocyclopentene (1a), was synthesized and its photochemical properties, such as photochromism in solution and in PMMA amorphous film, fluorescence and optical storage properties were investigated in detail. The results showed that it can be useful in fluorescence molecule switch, scale optoelectronics and potential use for data storage.

关键词： Diarylethene Fluorescence switch optical recording medium

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High-energy attosecond light sources

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NATURE PHOTONICS 2011年第11期5卷 656-664页

作者： Sansone, Giuseppe Poletto, Luca Nisoli, Mauro Politecn Milan Dept Phys Natl Res Council Italy Inst Photon & Nanotechnol I-20133 Milan Italy Natl Res Council Italy Inst Photon & Nanotechnol I-35131 Padua Italy

The development of attosecond technology is one of the most significant achievements in the field of ultrafast optics over the past decade. Since the first experimental demonstration of attosecond pulses just ten years ago, novel techniques have been introduced for the generation, characterization and application of subfemtosecond pulses. The development of attosecond tools is continuously triggering the introduction of new spectroscopic and measurement methods, which will offer the opportunity to investigate unexplored research areas with unprecedented time resolution. The wealth of ultrafast processes, which can be investigated by taking advantage of attosecond temporal resolution, can be greatly extended by the development of high-intensity attosecond sources. This Review covers a selection of recent advances in the field of attosecond technology, with particular attention being given to the generation and application of high-energy attosecond pulses.

关键词： Lasers LEDs and light sources Nonlinear optics Ultrafast photonics nature photonics Nature Photonics nature publishing group content journal optoelectronics optics biophotonics quantum optics cryptography spectroscopy terahertz technology light propagation lasers LEDs photovotaics fibre optics optical data storage

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Tag testing methodology for RFID enabled temperature tracking and shelf life estimation

Tag testing methodology for RFID enabled temperature trackin...

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2011 2nd IEEE RFID Technologies and Applications Conference, RFID-TA 2011, Collocated with the 2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies, IMWS 2011

作者： Uysal, Ismail Emond, Jean-Pierre Bennett, Gisele College of Technology and Innovation University of South Florida Polytechnic Lakeland FL 33803 United States Electro-Optical Systems Laboratory Georgia Institute of Technology Atlanta GA 30332 United States

ISBN: (纸本)9781457700279

Recent advances in sensory devices using radio frequency identification (RFID) led to applications such as monitoring the temperature during the transportation of heat sensitive products where recorded data can be used to detect refrigeration equipment failure along the supply chain or estimate remaining shelf life of the product. For the project discussed in this paper, a handheld based portable RFID system is used to track the storage and transportation temperatures of perishable products using battery assisted passive temperature tags. The information from the tags is used in shelf life prediction models to estimate the remaining shelf life based on the recorded temperature data to provide a dynamic expiration date. Instead of the full application development effort, this paper focuses on the unique project requirements and challenges which led to the introduction of three novel concepts related to RFID enabled temperature tracking systems. First, due to absence of a common standard for testing RFID temperature tags, we develop a requirement driven, comprehensive testing protocol combining statistical tools and common industry standards with the help of a uniquely designed test setup to realistically simulate and evaluate the real life performances of different temperature tags. Next, a novel context based accuracy metric is derived for objective and application (such as shelf life prediction) specific comparison of different technologies. Finally, a pallet temperature estimation algorithm is developed to overcome some of the physical difficulties encountered in reading ultra-high frequency tags near the presence of metals and liquids. © 2011 IEEE.

关键词： Supply chains

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Tag testing methodology for RFID enabled temperature tracking and shelf life estimation

Tag testing methodology for RFID enabled temperature trackin...

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IEEE International Conference on RFID-technology and Applications (RFID-TA)

作者： Ismail Uysal Jean-Pierre Emond Gisele Bennett College of Technology and Innovation University of South Florida Polytechnic Lakeland FL USA Electro-Optical Systems Laboratory Georgia Institute of Technology Atlanta GA USA

关键词： Temperature sensors Radiofrequency identification Vibrations Temperature distribution Testing Accuracy Schedules

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Two-photon absorption: an overview of measurements and principles

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advances IN OPTICS AND PHOTONICS 2010年第4期2卷 451-518页

作者： Rumi, Mariacristina Perry, Joseph W. Georgia Inst Technol Sch Chem & Biochem Atlanta GA 30332 USA Georgia Inst Technol Ctr Organ Photon & Elect Atlanta GA 30332 USA

The range of organic compounds whose degenerate two-photon absorption (2PA) spectrum has been reported has increased rapidly in recent years, in parallel with the growing interest in applications based on the 2PA process. The comparison of results from different techniques is not always straightforward, and experimental conditions employed may vary significantly. We overview the concepts underlying 2PA measurements and the common assumptions and approximations used in the data analysis for various techniques. The importance of selecting appropriate excitation regimes under which measurements should be performed and of avoiding contributions from absorption mechanisms in addition to 2PA will be emphasized. (C) 2010 optical Society of America

关键词： Electric fields Holographic recording materials Light matter interactions optical data storage optical limiting Three dimensional optical data storage

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Organic charge-transfer complexes for STM-based thermochemical-hole-burning memory

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COORDINATION CHEMISTRY REVIEWS 2010年第9-10期254卷 1151-1168页

作者： Peng, Hailin Liu, Zhongfan Peking Univ State Key Lab Struct Chem Unstable & Stable Speci Coll Chem & Mol Engn Beijing Natl Lab Mol SciCtr Nanochem Beijing 100871 Peoples R China

data storage using scanning probe microscopy (SPM) has attracted great attention because of its nanometer-scale storage capacity We present an overview of the recent advances and representative achievements of SPM-based data storage from the viewpoints of recording techniques including electrical bistability, photoelectrochemical conversion, field-induced charge storage, atomic manipulation or deposition, local oxidation, magneto-optical or magnetic recording, thermally Induced physical deformation or phase change, and so forth Among new SPM-based data storage schemes, a thermochemical-hole-burning (THB) technique was developed in our group This review also summarizes our recent achievements in design and synthesis of organic charge-transfer (CT) complexes towards thermochemical-hole-burning memory, the correlation between hole-burning performances and physicochemical properties of CT complexes, the STM tip design and its effects on the hole-burning performance, as well as studies on the data storage mechanism (C) 2010 Elsevier B V All rights reserved

关键词： Charge-transfer complex Scanning probe microscopy data storage Thermochemical hole burning TCNQ

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