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Laser Radar - National Research Council - Bog - National Academies Press - Plusbog.dk

Laser Radar - National Research Council - Bog - National Academies Press - Plusbog.dk

In today's world, the range of technologies with the potential to threaten the security of U.S. military forces is extremely broad. These include developments in explosive materials, sensors, control systems, robotics, satellite systems, and computing power, to name just a few. Such technologies have not only enhanced the capabilities of U.S. military forces, but also offer enhanced offensive capabilities to potential adversaries - either directly through the development of more sophisticated weapons, or more indirectly through opportunities for interrupting the function of defensive U.S. military systems. Passive and active electro-optical (EO) sensing technologies are prime examples. Laser Radar considers the potential of active EO technologies to create surprise; i.e., systems that use a source of visible or infrared light to interrogate a target in combination with sensitive detectors and processors to analyze the returned light. The addition of an interrogating light source to the system adds rich new phenomenologies that enable new capabilities to be explored. This report evaluates the fundamental, physical limits to active EO sensor technologies with potential military utility; identifies key technologies that may help overcome the impediments within a 5-10 year timeframe; considers the pros and cons of implementing each existing or emerging technology; and evaluates the potential uses of active EO sensing technologies, including 3D mapping and multi-discriminate laser radar technologies. Table of ContentsFront MatterSummary1 Introduction2 Active Electro-Optical Sensing Approaches3 Emerging Electro-Optical Technologies4 Active Electro-Optical Component Technologies5 Fundamental and Engineering Limits of Active Electro-Optical SensingAppendix A: Committee BiographiesAppendix B: Meetings and Participating OrginizationsAppendix C: Laser Sources and Their Fundamental and Engineering Limits

DKK 448.00
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Scientific Assessment of High-Power Free-Electron Laser Technology - Board On Physics And Astronomy - Bog - National Academies Press - Plusbog.dk

Scientific Assessment of High-Power Free-Electron Laser Technology - Board On Physics And Astronomy - Bog - National Academies Press - Plusbog.dk

This book presents a scientific assessment of free-electron-laser technology for naval applications. The charge from the Office of Naval Research was to assess whether the desired performance capabilities are achievable or whether fundamental limitations will prevent them from being realized. The present study identifies the highest-priority scientific and technical issues that must be resolved along the development path to achieve a megawatt-class free-electron laser. In accordance with the charge, the committee considered (and briefly describes) trade-offs between free-electron lasers and other types of lasers and weapon systems to show the advantages free-electron lasers offer over other types of systems for naval applications as well as their drawbacks. The primary advantages of free-electron lasers are associated with their energy delivery at the speed of light, selectable wavelength, and all-electric nature, while the trade-offs for free-electron lasers are their size, complexity, and relative robustness. Also, Despite the significant technical progress made in the development of high-average-power free-electron lasers, difficult technical challenges remain to be addressed in order to advance from present capability to megawatt-class power levels. Table of ContentsFront MatterExecutive Summary1 Introduction and Principal Findings2 State of the Art3 Technical Assessment: Scalability to One-Megawatt Power LevelsAppendixesAppendix A: Statement of TaskAppendix B: Committee Meeting AgendasAppendix C: Biographies of Committee Members and StaffAppendix D: Acronyms and Glossary

DKK 260.00
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Plasma Science - Board On Physics And Astronomy - Bog - National Academies Press - Plusbog.dk

Plasma Science - Board On Physics And Astronomy - Bog - National Academies Press - Plusbog.dk

Plasma Science and Engineering transforms fundamental scientific research into powerful societal applications, from materials processing and healthcare to forecasting space weather. Plasma Science: Enabling Technology, Sustainability, Security and Exploration discusses the importance of plasma research, identifies important grand challenges for the next decade, and makes recommendations on funding and workforce. This publication will help federal agencies, policymakers, and academic leadership understand the importance of plasma research and make informed decisions about plasma science funding, workforce, and research directions. Table of ContentsFront MatterSummary1 Plasma Science: Enabling Technology, Sustainability, Security, and Exploration2 The Foundations of Plasma Science3 Laser-Plasma Interactions: Compact Particle Accelerators, New Optics, and Brilliant X-Ray Sources4 Extreme States of Plasmas: High-Energy Density Systems5 Low-Temperature Plasmas: A Unique State of Matter for Addressing Societal Needs6 Magnetic Confinement Fusion Energy: Bringing Stars to Earth7 The Cosmic Plasma FrontierAppendixesAppendix A: Statement of TaskAppendix B: Summary of Findings and RecommendationsAppendix C: Survey Data-Gathering EventsAppendix D: Committee Member Biographical InformationAppendix E: Acronyms

DKK 656.00
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