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Author : Nan-Hsiung Yeh
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (35 download)
Download or read book Superconducting Transition Edge Bolometer and Noise in Thin Films written by Nan-Hsiung Yeh and published by . This book was released on 1978 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 105 pages
Book Rating : 4.:/5 (873 download)
Download or read book Superconducting Transition Edge Bolometer and Noise in Thin Films written by and published by . This book was released on 1978 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the development of the composite superconducting transition edge bolometer. The temperature sensitive element is an aluminum strip evaporated onto the sapphire substrate. A bismuth film evaporated on the reverse side of the substrate is used to absorb the submillimeter radiation. The noise limitation of the bolometer is calculated. The fabrication and measured performance are described. The best electrical NEP (noise-equivalent-power) obtained is (1.7 ± 0.1) x 10−15 WHz−12 at 2 Hz at an operating temperature of 1.27 K. This NEP is within a factor of 2 of the thermal noise limit. The effective absorptivity of the bismuth film is measured to be 0.47 ± 0.05, and the corresponding detectivity D* is calculated to be (1.1 ± 0.1) x 1014 cm w−1Hz12. Suggestions are made for further improvements in sensitivity. The current-dependent noise in thin metal films at the superconducting transition has been further investigated. The measured noise power spectrum of the tin film on sapphire substrate at the superconducting transition is compared with the cosine transforms of the decay curves obtained from step-function and [delta]-function thermal perturbations. The nature of the noise driving term is found to be a random current flowing inside the sample, in agreement with the uncorrelated thermal fluctuation model. This result is consistent with the case of a freely suspended tin fiber at the superconducting transition, but in contrast to the room temperature measurement where the cosine transform of the step-function response gives the noise power spectrum, in agreement with the correlated fluctuation model.
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ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.3/5 (91 download)
Download or read book NBSIR. written by and published by . This book was released on 1978 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Josef Sikula
Publisher : Springer Science & Business Media
ISBN 13 : 1402021704
Total Pages : 371 pages
Book Rating : 4.4/5 (2 download)
Download or read book Advanced Experimental Methods for Noise Research in Nanoscale Electronic Devices written by Josef Sikula and published by Springer Science & Business Media. This book was released on 2006-02-21 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of recently developed experimental methods for noise research in nanoscale electronic devices, conducted by specialists in transport and stochastic phenomena in nanoscale physics. The approach described is to create methods for experimental observations of noise sources, their localization and their frequency spectrum, voltage-current and thermal dependences. Our current knowledge of measurement methods for mesoscopic devices is summarized to identify directions for future research, related to downscaling effects. The directions for future research into fluctuation phenomena in quantum dot and quantum wire devices are specified. Nanoscale electronic devices will be the basic components for electronics of the 21st century. From this point of view the signal-to-noise ratio is a very important parameter for the device application. Since the noise is also a quality and reliability indicator, experimental methods will have a wide application in the future.
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ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993-02 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vinod Kumar Khanna
Publisher : CRC Press
ISBN 13 : 100033127X
Total Pages : 579 pages
Book Rating : 4.0/5 (3 download)
Download or read book Nanosensors written by Vinod Kumar Khanna and published by CRC Press. This book was released on 2021-02-25 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanosensors are innovative devices that exploit the unique properties exhibited by matter at the nanoscale. A growing and exciting field, nanosensors have recently spurred considerable research endeavors across the globe, driving a need for the development of new device concepts and engineering nanostructured materials with controlled properties. Nanosensors: Physical, Chemical, and Biological, Second Edition offers a panoramic view of the field and related nanotechnologies with extraordinary clarity and depth. Presenting an interdisciplinary approach, blending physics, chemistry and biology, this new edition is broad in scope and organised into six parts; beginning with the fundamentals before moving onto nanomaterials and nanofabrication technologies in the second part. The third and fourth parts provide a critical appraisal of physical nanosensors, and explore the chemical and biological categories of nanosensors. The fifth part sheds light on the emerging applications of nanosensors in the sectors of society, industry, and defense and details the cutting-edge applications of state-of-the-art nanosensors in environmental science, food technology, medical diagnostics, and biotechnology. The final part addresses self-powering and networking issues of nanosensors, and provides glimpses of future trends. This is an ideal reference for researchers and industry professionals engaged in the frontier areas of material science and semiconductor fabrication as well as graduate students in physics and engineering pursuing electrical engineering and electronics courses with a focus on nanoscience and nanotechnology. Key features: Provides an updated, all-encompassing exploration of contemporary nanosensors and highlights the exclusive nanoscale properties on which nanosensors are designed. Presents an accessible approach with a question-and-answer format to allow an easy grasp of the intricacies involved in the complex working mechanisms of devices. Contains clear, illustrative diagrams enabling the visualization of nanosensor operations, along with worked examples, end of chapter questions, and exhaustive up-to-date bibliographies appended to each chapter.
Author : Hisao Hayakawa
Publisher : Springer Science & Business Media
ISBN 13 : 4431681957
Total Pages : 1086 pages
Book Rating : 4.4/5 (316 download)
Download or read book Advances in Superconductivity IV written by Hisao Hayakawa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1086 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five years have passed since the breakthrough in the critical temperature for superconductors. During this period, many superconducting materials have been discovered and developed, and our knowledge of the physical and other properties of oxide superconductors has deepened through extensive and intensive research. This knowledge has advanced superconductivity science and technology from the initial questioning stage to a more developed but still uncertain second stage where research activity in superconductivity now overlaps with fields of application. Generally speaking, science resonates with technology. Science not only complements but also competes with or stimulates technology. New scientific knowledge has triggered the second technological research stage. Much progress has been made in the development of practical devices, encouraging the application of superconductors in areas such as human levitation, a high speed levitated bearing, large current transforming leads, and high frequency devices. This technological progress has increased our understanding of the science involved, such as flux pinning and dynamics, and anomalous long-range superconducting interactions. At this important stage, international cooperation and collaborative projects can effectively sustain aggressive research and development in order to advance superconductivity to the next stages. The ISS Symposium is expected to serve as a venue for increasing our knowledge of superconductivity and for exchanging visions for future research and applications, through the presentation and discus of the latest research results. These proceedings also aim to summarize sion annual progress in high-Tc superconductivity in all fields.
Author : Héctor J. De Vega
Publisher : Springer Science & Business Media
ISBN 13 : 940100997X
Total Pages : 589 pages
Book Rating : 4.4/5 (1 download)
Download or read book Phase Transitions in the Early Universe: Theory and Observations written by Héctor J. De Vega and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fundamental, profound review of the key issues relating to the early universe and the physical processes that occurred in it. The interplay between cosmic microwave background radiation, large scale structure, and the dark matter problem are stressed, with a central focus on the crucial issue of the phase transitions in the early universe and their observable consequences: baryon symmetry, baryogenesis and cosmological fluctuations. There is an interplay between cosmology, statistical physics and particle physics in studying these problems, both at the theoretical and the experimental / observational levels. Special contributions are devoted to primordial and astrophysical black holes and to high energy cosmic rays and neutrino astrophysics. There is also a special section devoted to the International Space Station and its scientific utilization.
Author : J.M. Chamberlain
Publisher : Springer Science & Business Media
ISBN 13 : 940115760X
Total Pages : 412 pages
Book Rating : 4.4/5 (11 download)
Download or read book New Directions in Terahertz Technology written by J.M. Chamberlain and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed study of the science, engineering and applications of terahertz technology, based on room-temperature solid-state devices, which are seen as the key technology for wider applications in this frequency range. The relative merits of electronic and optical devices are discussed and new device principles identified. Issues of terahertz circuit design, implementation and measurement are complemented by chapters on current and future applications in communications, sensing and remote surveillance. Audience: The unique coverage of all aspects of terahertz technology will appeal to both new and established workers in the field, as well as providing a survey for the interested reader.
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ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Tech Briefs written by and published by . This book was released on 1995 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Antoni Rogalski
Publisher : CRC Press
ISBN 13 : 1351984764
Total Pages : 1044 pages
Book Rating : 4.3/5 (519 download)
Download or read book Infrared and Terahertz Detectors, Third Edition written by Antoni Rogalski and published by CRC Press. This book was released on 2019-01-10 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of Infrared and Terahertz Detectors provides a comprehensive overview of infrared and terahertz detector technology, from fundamental science to materials and fabrication techniques. It contains a complete overhaul of the contents including several new chapters and a new section on terahertz detectors and systems. It includes a new tutorial introduction to technical aspects that are fundamental for basic understanding. The other dedicated sections focus on thermal detectors, photon detectors, and focal plane arrays.
Author : Petra Thoma
Publisher : KIT Scientific Publishing
ISBN 13 : 3731500701
Total Pages : 192 pages
Book Rating : 4.7/5 (315 download)
Download or read book Ultra-fast YBa2Cu3O7-x Direct Detectors for the THz Frequency Range written by Petra Thoma and published by KIT Scientific Publishing. This book was released on 2014-07-28 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the analysis and optimization of the picosecond pulsed terahertz radiation generated by electron storage rings or other pulsed sources, ultra-fast detectors are required which are able to resolve picosecond dynamic processes directly in the time domain. In this book, a new direct terahertz detector technology based on the high-temperature superconductor YBa2Cu3O7-x has been developed which opens new routes in the analysis of picosecond time-domain processes with a wide dynamic range.
Author : Neeraj Khare
Publisher : CRC Press
ISBN 13 : 9780203911846
Total Pages : 458 pages
Book Rating : 4.9/5 (118 download)
Download or read book Handbook of High-Temperature Superconductor written by Neeraj Khare and published by CRC Press. This book was released on 2003-05-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Devoted to the preparation, characterization and evaluation of HTS electronic devices, the Handbook of High-Temperature Superconductor Electronics provides information on using high-Tc thin films and junctions to increase speed, lessen noise, lower power consumption and enhance upper frequency limits in superconductor electronics. Compiled by a gro
Author : Z X Zhao
Publisher : World Scientific
ISBN 13 : 9814553999
Total Pages : 922 pages
Book Rating : 4.8/5 (145 download)
Download or read book High-temperature Superconductivity (Bhtsc '92) - Proceedings Of The Beijing International Conference written by Z X Zhao and published by World Scientific. This book was released on 1993-10-13 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will contain both invited and contributed papers which focus on the search for new high-Tc materials, characterization of their physical properties and microstructures, basic applications and the application of high-Tc superconductors.
Author : F. Melchiorri
Publisher : IOS Press
ISBN 13 : 1614990158
Total Pages : 525 pages
Book Rating : 4.6/5 (149 download)
Download or read book Background Microwave Radiation and Intracluster Cosmology written by F. Melchiorri and published by IOS Press. This book was released on 2006-01-24 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is devoted to the Sunyaev-Zeldovich (S-Z) effect, and important related topics in cluster and CMB research. S-Z science is about to be significantly enhanced by unique, multi-faceted cluster and cosmological yield, at a level of precision in accord with the high standards of the current era that was heralded by spectacular achievements in cosmological CMB research. The pedagogical reviews and technical seminars included in this volume represent most of the important current topics in S-Z work and in the astrophysics of clusters. The publication touches upon all relevant aspects of the S-Z effect and its use as a precise cluster and cosmological probe. To commemorate the 40th anniversary of the detection of the CMB by Penzias and Wilson (in 1964), there is a chapter devoted to the history of this discovery. In his fascinating account of their work, he outlines also some lessons pertinent to current scientific issues. Other chapters discuss very interesting related observational work in Europe and the US.
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ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.3/5 (243 download)
Download or read book International Journal of Infrared and Millimeter Waves written by and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
