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Ultraviolet Detectors And Focal Plane Array Imagers Based On Alxga1 Xn P I N Photodiodes
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Book Synopsis Ultraviolet Detectors and Focal Plane Array Imagers Based on AlxGa1-xN P-i-n Photodiodes by : Joseph Preston Long
Download or read book Ultraviolet Detectors and Focal Plane Array Imagers Based on AlxGa1-xN P-i-n Photodiodes written by Joseph Preston Long and published by . This book was released on 2004 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: UV detector, UV focal plane array, UV digital camera, UV photodiode.
Book Synopsis Ultraviolet Detectors and Focal Plane Array Imagers Based on AlxGa1-xN P-I-N Photodiodes by :
Download or read book Ultraviolet Detectors and Focal Plane Array Imagers Based on AlxGa1-xN P-I-N Photodiodes written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research has been conducted in order to address the absence of effective solid-state ultraviolet (UV) detectors and imagers. Despite the wide range of advances in visible and infrared imagery, until recently there have been no semiconductor devices under development for imaging strictly in the ultraviolet region of the spectrum. Much of the difficulty in creating such devices has been due to the lack of appropriate materials; however, the development of the group III-nitrides (III-N), including materials such as GaN and AlGaN, has provided a solution to this dilemma. The AlxGa1-xN based devices synthesized during this research were grown via organo-metallic vapor phase epitaxy and processed using standard photolithography, e-beam evaporation, and reactive ion etching processes. Focal plane arrays were subsequently bump bonded to silicon read-out integrated circuits (ROICs), which were then wire bonded to 84-pin leadless chip carriers. A specialized video camera and focal plane array evaluation software were used to test the imagers. The devices exhibit very low noise and very high sensitivity to ultraviolet radiation. Excellent quality UV images have been obtained for both 128x128 and 320x256 large format hybridized focal plane arrays. These new devices may find widespread usage in a number of applications that require sensitive UV detectors and UV imagers but where the cost, size, and power requirements of a photomultiplier tube cannot be justified.
Book Synopsis Observing Photons in Space by : Martin C. E. Huber
Download or read book Observing Photons in Space written by Martin C. E. Huber and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ideal resource for lecturers, this book provides a comprehensive review of experimental space astronomy. The number of astronomers whose knowledge and interest is concentrated on interpreting observations has grown substantially in the past decades; yet, the number of scientists who are familiar with and capable of dealing with instrumentation has dwindled. All of the authors of this work are leading and experienced experts and practitioners who have designed, built, tested, calibrated, launched and operated advanced observing equipment for space astronomy. This book also contains concise information on the history of the field, supported by appropriate references. Moreover, scientists working in other fields will be able to get a quick overview of the salient issues of observing photons in any one of the various energy, wavelength and frequency ranges accessible in space. This book was written with the intention to make it accessible to advanced undergraduate and graduate students.
Book Synopsis Optoelectronic Sensors by : Didier Decoster
Download or read book Optoelectronic Sensors written by Didier Decoster and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optoelectronic sensors combine optical and electronic systems for numerous applications including pressure sensors, security systems, atmospheric particle measurement, close tolerance measurement, quality control, and more. This title provides an examination of the latest research in photonics and electronics in the areas of sensors.
Book Synopsis Semiconductor Laser Engineering, Reliability and Diagnostics by : Peter W. Epperlein
Download or read book Semiconductor Laser Engineering, Reliability and Diagnostics written by Peter W. Epperlein and published by John Wiley & Sons. This book was released on 2013-01-25 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference book provides a fully integrated novel approach to the development of high-power, single-transverse mode, edge-emitting diode lasers by addressing the complementary topics of device engineering, reliability engineering and device diagnostics in the same book, and thus closes the gap in the current book literature. Diode laser fundamentals are discussed, followed by an elaborate discussion of problem-oriented design guidelines and techniques, and by a systematic treatment of the origins of laser degradation and a thorough exploration of the engineering means to enhance the optical strength of the laser. Stability criteria of critical laser characteristics and key laser robustness factors are discussed along with clear design considerations in the context of reliability engineering approaches and models, and typical programs for reliability tests and laser product qualifications. Novel, advanced diagnostic methods are reviewed to discuss, for the first time in detail in book literature, performance- and reliability-impacting factors such as temperature, stress and material instabilities. Further key features include: practical design guidelines that consider also reliability related effects, key laser robustness factors, basic laser fabrication and packaging issues; detailed discussion of diagnostic investigations of diode lasers, the fundamentals of the applied approaches and techniques, many of them pioneered by the author to be fit-for-purpose and novel in the application; systematic insight into laser degradation modes such as catastrophic optical damage, and a wide range of technologies to increase the optical strength of diode lasers; coverage of basic concepts and techniques of laser reliability engineering with details on a standard commercial high power laser reliability test program. Semiconductor Laser Engineering, Reliability and Diagnostics reflects the extensive expertise of the author in the diode laser field both as a top scientific researcher as well as a key developer of high-power highly reliable devices. With invaluable practical advice, this new reference book is suited to practising researchers in diode laser technologies, and to postgraduate engineering students.
Book Synopsis Frequency Standards by : Fritz Riehle
Download or read book Frequency Standards written by Fritz Riehle and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency. This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards from atomic clocks, to frequency stabilised lasers. The whole is rounded of with a discussion of topical applications in engineering, telecommunications, and metrology.
Book Synopsis III-Nitride Ultraviolet Emitters by : Michael Kneissl
Download or read book III-Nitride Ultraviolet Emitters written by Michael Kneissl and published by Springer. This book was released on 2015-11-12 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the state-of-the-art in group III-nitride based ultraviolet LED and laser technologies, covering different substrate approaches, a review of optical, electronic and structural properties of InAlGaN materials as well as various optoelectronic components. In addition, the book gives an overview of a number of key application areas for UV emitters and detectors, including water purification, phototherapy, sensing, and UV curing. The book is written for researchers and graduate level students in the area of semiconductor materials, optoelectronics and devices as well as developers and engineers in the various application fields of UV emitters and detectors.
Book Synopsis GaN and Related Materials by : Stephen J. Pearton
Download or read book GaN and Related Materials written by Stephen J. Pearton and published by CRC Press. This book was released on 2021-10-08 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents views on current developments in heat and mass transfer research related to the modern development of heat exchangers. Devotes special attention to the different modes of heat and mass transfer mechanisms in relation to the new development of heat exchangers design. Dedicates particular attention to the future needs and demands for further development in heat and mass transfer. GaN and related materials are attracting tremendous interest for their applications to high-density optical data storage, blue/green diode lasers and LEDs, high-temperature electronics for high-power microwave applications, electronics for aerospace and automobiles, and stable passivation films for semiconductors. In addition, there is great scientific interest in the nitrides, because they appear to form the first semiconductor system in which extended defects do not severely affect the optical properties of devices. This series provides a forum for the latest research in this rapidly-changing field, offering readers a basic understanding of new developments in recent research. Series volumes feature a balance between original theoretical and experimental research in basic physics, device physics, novel materials and quantum structures, processing, and systems.
Book Synopsis The Physics of Semiconductor Devices by : R. K. Sharma
Download or read book The Physics of Semiconductor Devices written by R. K. Sharma and published by Springer. This book was released on 2019-01-31 with total page 1299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book disseminates the current knowledge of semiconductor physics and its applications across the scientific community. It is based on a biennial workshop that provides the participating research groups with a stimulating platform for interaction and collaboration with colleagues from the same scientific community. The book discusses the latest developments in the field of III-nitrides; materials & devices, compound semiconductors, VLSI technology, optoelectronics, sensors, photovoltaics, crystal growth, epitaxy and characterization, graphene and other 2D materials and organic semiconductors.
Book Synopsis Multi-Band Effective Mass Approximations by : Matthias Ehrhardt
Download or read book Multi-Band Effective Mass Approximations written by Matthias Ehrhardt and published by Springer. This book was released on 2014-07-17 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses several mathematical models from the most relevant class of kp-Schrödinger systems. Both mathematical models and state-of-the-art numerical methods for adequately solving the arising systems of differential equations are presented. The operational principle of modern semiconductor nano structures, such as quantum wells, quantum wires or quantum dots, relies on quantum mechanical effects. The goal of numerical simulations using quantum mechanical models in the development of semiconductor nano structures is threefold: First they are needed for a deeper understanding of experimental data and of the operational principle. Secondly, they allow us to predict and optimize in advance the qualitative and quantitative properties of new devices in order to minimize the number of prototypes needed. Semiconductor nano structures are embedded as an active region in semiconductor devices. Thirdly and finally, the results of quantum mechanical simulations of semiconductor nano structures can be used with upscaling methods to deliver parameters needed in semi-classical models for semiconductor devices, such as quantum well lasers. This book covers in detail all these three aspects using a variety of illustrative examples. Readers will gain detailed insights into the status of the multiband effective mass method for semiconductor nano structures. Both users of the kp method as well as advanced researchers who want to advance the kp method further will find helpful information on how to best work with this method and use it as a tool for characterizing the physical properties of semiconductor nano structures. The book is primarily intended for graduate and Ph.D. students in applied mathematics, mathematical physics and theoretical physics, as well as all those working in quantum mechanical research or the semiconductor / opto-electronic industry who are interested in new mathematical aspects.
Book Synopsis Piezotronics and Piezo-Phototronics by : Zhong Lin Wang
Download or read book Piezotronics and Piezo-Phototronics written by Zhong Lin Wang and published by Springer Science & Business Media. This book was released on 2013-01-11 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental principle of piezotronics and piezo-phototronics were introduced by Wang in 2007 and 2010, respectively. Due to the polarization of ions in a crystal that has non-central symmetry in materials, such as the wurtzite structured ZnO, GaN and InN, a piezoelectric potential (piezopotential) is created in the crystal by applying a stress. Owing to the simultaneous possession of piezoelectricity and semiconductor properties, the piezopotential created in the crystal has a strong effect on the carrier transport at the interface/junction. Piezotronics is for devices fabricated using the piezopotential as a “gate” voltage to control charge carrier transport at a contact or junction. The piezo-phototronic effect uses the piezopotential to control the carrier generation, transport, separation and/or recombination for improving the performance of optoelectronic devices, such as photon detector, solar cell and LED. The functionality offered by piezotroics and piezo-phototronics are complimentary to CMOS technology. There is an effective integration of piezotronic and piezo-phototronic devices with silicon based CMOS technology. Unique applications can be found in areas such as human-computer interfacing, sensing and actuating in nanorobotics, smart and personalized electronic signatures, smart MEMS/NEMS, nanorobotics and energy sciences. This book introduces the fundamentals of piezotronics and piezo-phototronics and advanced applications. It gives guidance to researchers, engineers and graduate students.
Book Synopsis Atmospheric Ultraviolet Remote Sensing by : Robert E. Huffman
Download or read book Atmospheric Ultraviolet Remote Sensing written by Robert E. Huffman and published by Academic Press. This book was released on 1992-10-19 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to the use of the ultraviolet for remote sensing of the Earth's atmosphere. It covers the Earth's UV radiative environment, experimental techniques, and current applications. it is my intention to provide the information needed to "make a first approximation" concerning the use of the ultraviolet and to provide access through the literature for a more thorough study. * Contains recent UV applications not previously available in book form such as ozone, auroral images, and ionospheric sensing * Features broad coverage of fundamentals of atmospheric geophysics with values for fluxes, cross-sections, and radiances * Covers techniques that illustrate principles of measurements with typical values * Contains numerous references to original literature
Book Synopsis Integrated Ring Resonators by : Dominik G. Rabus
Download or read book Integrated Ring Resonators written by Dominik G. Rabus and published by Springer. This book was released on 2007-04-26 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The optical filter is resonator based. The required passband shape of ring resonator-filters can be custom designed by the use of configurations of various ring coupled resonators. This book describes the current state-of-the-art on these devices. It provides an in-depth knowledge of the simulation, fabrication and characterization of ring resonators for use as example filters, lasers, sensors.
Book Synopsis Photonics and Lasers by : Richard S. Quimby
Download or read book Photonics and Lasers written by Richard S. Quimby and published by John Wiley & Sons. This book was released on 2006-04-14 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to photonics and lasers that does not rely on complex mathematics This book evolved from a series of courses developed by the author and taught in the areas of lasers and photonics. This thoroughly classroom-tested work fills a unique need for students, instructors, and industry professionals in search of an introductory-level book that covers a wide range of topics in these areas. Comparable books tend to be aimed either too high or too low, or they cover only a portion of the topics that are needed for a comprehensive treatment. Photonics and Lasers is divided into four parts: * Propagation of Light * Generation and Detection of Light * Laser Light * Light-Based Communication The author has ensured that complex mathematics does not become an obstacle to understanding key physical concepts. Physical arguments and explanations are clearly set forth while, at the same time, sufficient mathematical detail is provided for a quantitative understanding. As an additional aid to readers who are learning to think symbolically, some equations are expressed in words as well as symbols. Problem sets are provided throughout the book for readers to test their knowledge and grasp of key concepts. A solutions manual is also available for instructors. Finally, the detailed bibliography leads readers to in-depth explorations of particular topics. The book's topics, lasers and photonics, are often treated separately in other texts; however, the author skillfully demonstrates their natural synergy. Because of the combined coverage, this text can be used for a two-semester course or a one-semester course emphasizing either lasers or photonics. This is a perfect introductory textbook for both undergraduate and graduate students, additionally serving as a practical reference for engineers in telecommunications, optics, and laser electronics.
Book Synopsis The Oxford Solid State Basics by : Steven H. Simon
Download or read book The Oxford Solid State Basics written by Steven H. Simon and published by Oxford University Press. This book was released on 2013-06-20 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a first undergraduate textbook in Solid State Physics or Condensed Matter Physics. While most textbooks on the subject are extremely dry, this book is written to be much more exciting, inspiring, and entertaining.
Book Synopsis Concepts in Photoconductivity and Allied Problems by : Albert Rose
Download or read book Concepts in Photoconductivity and Allied Problems written by Albert Rose and published by . This book was released on 1963 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-Ray Absorption Spectroscopy of Semiconductors by : Claudia S. Schnohr
Download or read book X-Ray Absorption Spectroscopy of Semiconductors written by Claudia S. Schnohr and published by Springer. This book was released on 2014-11-05 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-ray Absorption Spectroscopy (XAS) is a powerful technique with which to probe the properties of matter, equally applicable to the solid, liquid and gas phases. Semiconductors are arguably our most technologically-relevant group of materials given they form the basis of the electronic and photonic devices that now so widely permeate almost every aspect of our society. The most effective utilisation of these materials today and tomorrow necessitates a detailed knowledge of their structural and vibrational properties. Through a series of comprehensive reviews, this book demonstrates the versatility of XAS for semiconductor materials analysis and presents important research activities in this ever growing field. A short introduction of the technique, aimed primarily at XAS newcomers, is followed by twenty independent chapters dedicated to distinct groups of materials. Topics span dopants in crystalline semiconductors and disorder in amorphous semiconductors to alloys and nanometric material as well as in-situ measurements of the effects of temperature and pressure. Summarizing research in their respective fields, the authors highlight important experimental findings and demonstrate the capabilities and applications of the XAS technique. This book provides a comprehensive review and valuable reference guide for both XAS newcomers and experts involved in semiconductor materials research.
