This book provides the reader with the broad range of materials that were discussed in a series of short courses presented at Georgia Tech on the design, fabrication, and testing of diffractive optical elements (DOEs). Although there are not long derivations or detailed methods for specific engineering calculations, the reader should be familiar and comfortable with basic computational techniques. This text is not a 'cookbook' for producing DOEs, but it should provide readers with sufficient information to assess whether this technology would benefit their work, and to understand the requirements for using the concepts and techniques presented by the authors.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

The field of optics has been accelerating at an unprecedented rate, due both to the tremendous growth of the field of fiber-optic communications, and to the improvement of optical materials and devices. Throughput capabilities of fiber systems are accelerating faster than Moore's law, the famous growth rate of silicon chip capability, which has propelled that industry relentlessly over decades. In addition, new optical storage techniques push the limits of information density, with an ever decreasing cost per bit of storage. Economic investment in photonics is at an all-time high. At the same time, other fields of optics, adaptive optics for instance, are bringing new capabilities to more classical applications such as astronomical imaging. New lasers continue to be developed, with applications in display, sensing, and biomedicine following at ever-shorter intervals after the initial discoveries. Given this background, the NATO Mediterranean Dialog Advanced Research Workshop on Unconventional Optical Elements for Information Storage, Processing and Communications, held in Israel on October 19-21, 1998, came at an opportune moment in the history of optics. Its aim was to overview the current state-of-the-art and encourage cooperation in the Mediterranean region, with a view to highlighting and enhancing the existing potential for further development and innovation. The workshop included participants from Belgium, France, Germany, Greece, Israel, Italy, Jordan, Morocco, Portugal, Romania, Russia, Switzerland, Turkey, United Kingdom and USA.

Fabricate 2024: Creating Resourceful Futures is the fifth volume in the series of Fabricate publications. The first conference – ‘Making Digital Architecture’ – explored the ways in which technology, design and industry are shaping the world around us. Since then, we have become finely attuned to the negative impacts of this shaping. The 2024 conference, hosted in Copenhagen, sets focus on the pressing need to develop new models for architectural production that rethink how resource is deployed, its intensity, its socio-ecological origins and sensitivity to environment. This book features the work of designers, engineers and makers operating within the built environment. It documents disruptive approaches that reconsider how fabrication can be leveraged to address our collective and entangled challenges of resource scarcity, climate emergency and burgeoning demand. Exploring case studies of completed buildings and works-in-progress, together with interviews with leading thinkers, this edition of Fabricate offers a plurality of tangible models for design and production that set a creative and responsible course towards resourceful futures.

Optical components are essential key elements in modern engineering and everyday life. The education of skilled personnel and specialists in the fields of theoretical and practical optics manufacturing is of essential importance for next-generation technologies. Against this background, this book provides the basis for the education and advanced training of precision and ophthalmic optics technicians, craftsmen, and foremen, and it is an extensive reference work for students, academics, optical designers or shop managers, and production engineers. It not only covers particularly used and applied machines, working materials, testing procedures, and machining steps for classical optics manufacturing, but it also addresses the production and specification of optical glasses as well as unconventional production techniques and novel approaches. Optics Manufacturing: Components and Systems furthermore covers the basics of light propagation and provides an overview on optical materials and components; presents an introduction and explanation of the necessary considerations and procedures for the initial definition of manufacturing tolerances and the relevant industrial standards for optics manufacturing; and addresses the production of micro optics, the assembly of opto-mechanical setups and possible manufacturing errors, and the impact of the resulting inaccuracies. In order to allow fast and clear access to the most essential information, each chapter ends with a short summary of the most important aspects, including an explanation of relevant equations, symbols, and abbreviations. For further reading, extensive lists of references are also provided. Finally, exercises on the covered basic principles of optics, approaches, and techniques of optics manufacturing—including their corresponding detailed solutions—are found in the appendix.