Download or read book Tunable Wavelength Based Photonic Architectures for the Dynamic Control of Phased Array Antennas written by Henry Zmuda and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines three novel photonic systems for controlling broadband phased array antennas. These photonic systems take advantage of recent advances in fiber Bragg gratings, high dispersion optical fiber and tunable wavelength laser technologies. The first system is a transmit/receive beamformer that uses fiber gratings arranged in a prism-like configuration. A proof-of-concept breadboard for controlling a three-element phased array antenna demonstrated high-resolution beamsteering over a 3.5 GHz bandwidth. Based on this discrete architecture, two other systems are proposed; a transversal filter and an optical packet encoder/decoder for optical data communication systems. The second system utilizes high dispersion optical fiber along with fiber Bragg gratings to achieve continuous steering for both transmit or receive. The system, dubbed a photonic crossbar switch, allows the independent routing of a wavelength-encoded signal from an arbitrary input port to an arbitrary output port. The third system, a modified version of the crossbar switch, is capable of broadband null steering. Measurements taken over a ten-percent fractional bandwidth on a three-element proof-of-concept system showed a uniform null depth of better than 40 dB across the entire band. The architecture presented is best suited for small antenna array applications, for example GPS-guided airborne munitions.
Download or read book Tunable Wavelength based Photonic Architectures for the Dynamic Control of Phased Array Antennas written by Henry Zmuda and published by . This book was released on 1999 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines three novel photonic systems for controlling broadband phased array antennas. These photonic systems take advantage of recent advances in fiber Bragg gratings, high dispersion optical fiber and tunable wavelength laser technologies. The first system is a transmit/receive beamformer that uses fiber gratings arranged in a prism-like configuration. A proof-of-concept breadboard for controlling a three-element phased array antenna demonstrated high-resolution beamsteering over a 3.5 GHz bandwidth. Based on this discrete architecture, two other systems are proposed; a transversal filter and an optical packet encoder/decoder for optical data communication systems. The second system utilizes high dispersion optical fiber along with fiber Bragg gratings to achieve continuous steering for both transmit or receive. The system, dubbed a photonic crossbar switch, allows the independent routing of a wavelength-encoded signal from an arbitrary input port to an arbitrary output port. The third system, a modified version of the crossbar switch, is capable of broadband null steering. Measurements taken over a ten-percent fractional bandwidth on a three-element proof-of-concept system showed a uniform null depth of better than 40 dB across the entire band. The architecture presented is best suited for small antenna array applications, for example GPS-guided airborne munitions.
Download or read book Selected Papers on Photonic Control Systems for Phased Array Antennas written by Nabeel A. Riza and published by SPIE-International Society for Optical Engineering. This book was released on 1997 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in this volume include: antenna beamforming using optical processor; novel optical techniques for phased-array processing; and optically-controlled phased array radar receiver using SLM switched real time delays.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neuromorphic Photonics written by Paul R. Prucnal and published by CRC Press. This book was released on 2017-05-08 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sets out to build bridges between the domains of photonic device physics and neural networks, providing a comprehensive overview of the emerging field of "neuromorphic photonics." It includes a thorough discussion of evolution of neuromorphic photonics from the advent of fiber-optic neurons to today’s state-of-the-art integrated laser neurons, which are a current focus of international research. Neuromorphic Photonics explores candidate interconnection architectures and devices for integrated neuromorphic networks, along with key functionality such as learning. It is written at a level accessible to graduate students, while also intending to serve as a comprehensive reference for experts in the field.
Download or read book Progress in Optics written by and published by Elsevier. This book was released on 2000-12-13 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume of this text was published in 1961, only a few months after the invention of the laser. This event triggered a wealth of developments, many of which were reported in the 240 review articles which were published in this series since its inception. The present volume contains seven articles covering a wide range of subjects. The first article presents a review of various optical effects in spherical and circular micro-cavities capable of supporting high-Q resonant modes (commonly referred to as morphology-dependent resonances (MDRs) or whispering gallery modes (WGMs)). The second presents a comprehensive review of the theory and practice of optical disk data storage. Other articles include discussions on delay control systems for wideband phased array antennas, and quantum statistical properties of optical beams interacting in nonlinear couplers.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2005 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Holographic Imaging written by Stephen A. Benton and published by John Wiley & Sons. This book was released on 2008-01-02 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only all-inclusive treatment of holography—from fundamental principles to the most advanced concepts While several existing texts cover different aspects of the field of holography, none provides a complete, up-to-date, and accessible view of its popular, scientific, and engineering aspects. Now, from an author team that includes one of the world's pioneers in the field, Holographic Imaging fills this need with a single, comprehensive text that covers the subject from traditional holography to the cutting-edge development of the world's most advanced three-dimensional holographic images, holographic printing, and holographic video. Written in an engaging and easy-to-follow style, Holographic Imaging promotes a hands-on approach to making holograms and provides readers with a working understanding of how and why they work. Following a brief introduction to the fundamentals of light and diffraction, coverage includes: the diffraction efficiency of gratings, "platonic" holography, a ray-tracing analysis of holography, holographic lenses and in-line "Gabor" holography, off-axis "Leith & Upatnieks" holography, non-laser illumination of holograms, phase conjunction and real image projection, full-aperture transfer holography, white-light transmission "rainbow" holography, practical issues in rainbow holography, in-line "Denisyuk" reflection holography, off-axis reflection holography, edge-lit holography, computational display holography, holographic printing, and holographic television. Helpful diagrams and equations that summarize the mathematical and physical principles for each technique discussed make this an approachable resource for readers from a variety of backgrounds, including undergraduate and postgraduate students with an interest in optics, optoelectronics, and information display, as well as researchers, scientists, engineers, and technology-savvy artists.
Download or read book IEEE Circuits Devices written by and published by . This book was released on 1999 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1999 IEEE MTT S International Microwave Symposium Digest written by and published by . This book was released on 1999 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Antennas written by Mario Agio and published by Cambridge University Press. This book was released on 2013-01-03 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This consistent and systematic review of recent advances in optical antenna theory and practice brings together leading experts in the fields of electrical engineering, nano-optics and nano-photonics, physical chemistry and nanofabrication. Fundamental concepts and functionalities relevant to optical antennas are explained, together with key principles for optical antenna modelling, design and characterisation. Recognising the tremendous potential of this technology, practical applications are also outlined. Presenting a clear translation of the concepts of radio antenna design, near-field optics and field-enhanced spectroscopy into optical antennas, this interdisciplinary book is an indispensable resource for researchers and graduate students in engineering, optics and photonics, physics and chemistry.
Download or read book mm Wave Silicon Technology written by Ali M. Niknejad and published by Springer Science & Business Media. This book was released on 2008-01-03 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book compiles and presents the research results from the past five years in mm-wave Silicon circuits. This area has received a great deal of interest from the research community including several university and research groups. The book covers device modeling, circuit building blocks, phased array systems, and antennas and packaging. It focuses on the techniques that uniquely take advantage of the scale and integration offered by silicon based technologies.
Download or read book Metasurfaces Physics and Applications written by Sergey I. Bozhevolnyi and published by MDPI. This book was released on 2018-11-16 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Metasurfaces: Physics and Applications" that was published in Applied Sciences
Download or read book Digest written by IEEE Antennas and Propagation Society. International Symposium and published by . This book was released on 1997 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Nanophotonics written by Sarhan Musa and published by CRC Press. This book was released on 2018-10-08 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference offers tools for engineers, scientists, biologists, and others working with the computational techniques of nanophotonics. It introduces the key concepts of computational methods in a manner that is easily digestible for newcomers to the field. The book also examines future applications of nanophotonics in the technical industry and covers new developments and interdisciplinary research in engineering, science, and medicine. It provides an overview of the key computational nanophotonics and describes the technologies with an emphasis on how they work and their key benefits.
Download or read book Metasurface Holography written by Zi-Lan Deng and published by Springer Nature. This book was released on 2022-05-31 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The merging of metasurface and holography brings about unprecedented opportunities for versatile manipulation of light in terms of both far-field wavefront and near-field profile. In this book, a brief evolving history from surface plasmon polariton holography to metamaterial holography and finally to metasurface holography is introduced at first. Basic physical mechanisms that govern the phase modulation rules behind metasurface holography design are discussed later. Next, extended functionalities such as arbitrary polarization holography, vectorial holography, full-color holography, and hybrid holography achieved in the metasurface platform are presented. Surface wave and metagrating holography that bridges the on-chip surface wave and free-space wave is also introduced. In the end, we envisage practical applications of high-fidelity 3D holographic display, high-secure encryption, and high capacity digital encoding and also indicate remaining challenges based on metasurface holography.
