Download or read book Theory Fabrication and Characterization of Quantum Well Infrared Photodetectors written by Janet L.. Pan and published by . This book was released on 2000 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory Fabrication and Characterization of Quantum Well Infrared Photodetectors written by Janet L. Pan and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Quantum Well Infrared Photodetectors by Analysis of Noise Spectral Density written by Lisa Kore and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Three quantum well infrared photodetectors are characterized utilizing noise spectral density and current-voltage measurements taken at a variety of temperatures and biases. Though all devices were fabricated using the GaAs/InGaAs material system, each has a unique morphology. D1 had three different quantum wells per period and 20 periods. D2 had one type of quantum well and 10 periods. D3 had one type of quantum well, 5 periods, and asymmetric barriers. Measurement temperatures for D1 ranged between 80 K and 180 K with bias values for each temperature between zero and 35 mA. For D2 and D3 measurement temperatures ranged between 80 K and 125 K with bias values for each temperature between zero and 10 mA. Utilizing models for thermionic emission current and Fowler-Nordheim tunneling current the current-voltage characteristic of each device was compared with the theory. The thermionic emission model did well for all devices at low bias. The tunneling model did well for all devices at high bias. In the middle range of biases D1 was underestimated by the models, D3 was overestimated by the models, and D2 was modeled well by a sum of the two models.
Download or read book Pfrontener Obstb ume written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Detectors written by Antonio Rogalski and published by CRC Press. This book was released on 2010-11-15 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely revised and reorganized while retaining the approachable style of the first edition, Infrared Detectors, Second Edition addresses the latest developments in the science and technology of infrared (IR) detection. Antoni Rogalski, an internationally recognized pioneer in the field, covers the comprehensive range of subjects necessary to un
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.
Download or read book Characterization of Quantum Well Infrared Photodetectors written by Yingkai John Liaw and published by . This book was released on 2002 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book GUIA do produtor written by and published by . This book was released on 1996 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Administração direta; Secretaria de política grícola-SPA; Abastecimento agropecuário; Secretaria de desenvolvimento rural-SDR; Assistência técnica e extensão rural; Conservação de solo e água; Cooperativismo e associativismo rural; Informação agrícola; Infra-estrutura rural; Mecanização e aviação agrícolas; Produção animal; Produção vegetal; Secretaria de defesa agropecuária-SDA; Defesa animal; Inspeção de produtos de origem animal; Defesa e inspeção vegetal; Endereços (EMATER, DEA, Convênios de classificação vegetal, Criadores de bovinos e laboratórios); Comissão especial de recursos-CER; Comissão executiva do plano da lavoura cacaueira-CEPLAC; Instituto naional de meteorologia-INMET; Administração indireta; Instituto nacional de colonização e reforma agrária-INCRA; Companhia Nacional de Abastecimento-CONAB; Empresa brasileira de pesquisa agropecuária -EMBRAPA; Companhia de colonização do nordeste-COLONE.
Download or read book Photonic Devices written by Jia-ming Liu and published by Cambridge University Press. This book was released on 2009-06-11 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic devices lie at the heart of the communications revolution, and have become a large and important part of the electronic engineering field, so much so that many colleges now treat this as a subject in its own right. With this in mind, the author has put together a unique textbook covering every major photonic device, and striking a careful balance between theoretical and practical concepts. The book assumes a basic knowledge of optics, semiconductors and electromagnetic waves. Many of the key background concepts are reviewed in the first chapter. Devices covered include optical fibers, couplers, electro-optic devices, magneto-optic devices, lasers and photodetectors. Problems are included at the end of each chapter and a solutions set is available. The book is ideal for senior undergraduate and graduate courses, but being device driven it is also an excellent engineers' reference.
Download or read book Nanobiosensors and Nanobioanalyses written by Mun'delanji C. Vestergaard and published by Springer. This book was released on 2015-03-18 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive review of established, cutting-edge, and future trends in the exponentially growing field of nanomaterials and their applications in biosensors and bioanalyses. Part I focuses on the key principles and transduction approaches, reviewing the timeline featuring the important historical milestones in the development and application of nanomaterials in biosensors and bioanalyses. Part II reviews various architectures used in nanobiosensing designs focusing on nanowires, one- and two-dimensional nanostructures, and plasmonic nanobiosensors with interferometric reflectance imaging. Commonly used nanomaterials, functionalization of the nanomaterials, and development of nanobioelectronics are discussed in detail in Part III with examples from screen-printed electrodes, nanocarbon films, and semiconductor quantum dots. Part IV reviews the current applications of carbon nanotubes, nanoneedles, plasmonic sensors, electrochemical scanning microscopes, and field-effect transistors with the future outlook for emerging technologies. Attention is also given to potential challenges, in particular, of taking these technologies at the point-of-need. The book concludes by providing a condensed summary of the contents, with emphasis on future directions. Nanomaterials have become an essential part of biosensors and bioanalyses in the detection and monitoring of medical, pharmaceutical, and environmental conditions, from cancer to chemical warfare agents. This book, with its distinguished editors and international team of expert contributors, will be an essential guide for all those involved in the research, design, development, and application of nanomaterials in biosensors and bioanalyses.
Download or read book Design Fabrication and Characterization of Terahertz Quantum well Photodetectors written by Shengxi Huang (S.M.) and published by . This book was released on 2013 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terahertz (THz) photodetectors are important in the fully exploration and development of electromagnetic spectrum. However, a fast and sensitive THz photodetector ready for array integration is not available. A THz Quantum-well Photodetector (QWP) has the properties of being fast, sensitive, low-noise, and narrow-band. It is promising for large-array integration for THz imaging. In addition, a THz QWP-LED (Light-Emitting Diode) can upconvert the THz to NIR radiation and useful for THz imaging in Focal-Plane Array (FPA). In this thesis project, the theory of the intersubband transition and carrier transport in a THz QWP is studied. The designe, fabrication, measurement-system buildup, and characterization are performed. In addition, the design and fabrication process of THz QWP-LED are also carried out. Such devices have potential applications in many fields such as biology, medication and security.
Download or read book The Design and Characterization of Strained layer Quantum Well Infrared Photodetectors written by Jerome T. Chu and published by . This book was released on 1998 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dark Current Characterization of Quantum Well Infrared Photodetectors written by Charles Neal Rowe and published by . This book was released on 1994 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of High Performance Multicolor Quantum Well Infrared Photodetectors and Studies of Enhancing Light Coupling and Radiation Effects in QWIPs written by and published by . This book was released on 1999 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this report, we present the design, fabrication, and characterization of several high performance multi-color and broadband quantum well infrared photodetectors (QWIPs) for both MWIR and LWIR applications. The report covers tasks performed during the period from March 3, 1998 through July 10, 1999. A very high sensitivity, high-strain, multi-color triple-coupled (TC-) QWIP using InGaAs/AlGaAs/InGaAs material systems has been developed in this project for LWIR multi-color detection. A two-stack InGaAs/AlGaAs/InGaAs TC-QWIP and InGaAs/AlGaAs TC-QWIP has been developed for the LWIR and MWIR dual-band detection. In addition, a high-strain InGaAs/GaAs TC-QWIP with and without two-dimensional (2-D) grating coupler has been designed, fabricated, and characterized for the LWIR detection. This device shows very high responsivity under 450 back-illumination. Several broadband (BB-) QWIPs have been developed for the LWIR detection. These include (1) two-stack, five-well n-type InGaAs/AlGaAs broadband (BB-) QWIPs with 3- and 7-period QWs in the unit cell, (2) 3- and 4-well n-type BB-QWIPs, and (3) two 3- and 4- well p-type BB-QWIPs. In addition, a three-stack InGaAs/AlGaAs/InGaAs BB TC-QWIP grown on GaAs substrate has been developed for LWIR detection, which has a FWHM spectral bandwidth twice larger than the single-stack TC-QWIP. Finally, a MWIR InGaAs/InAlAs TC-QWIP grown on InP substrate, operating up to T = 116K with excellent device performance, has also been demonstrated. Four journal papers and six conference papers have been published and presented from this work.
Download or read book Advanced Semiconductor Heterostructures written by Mitra Dutta and published by World Scientific. This book was released on 2003 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Novel heterostructure devices. Electron-phonon interactions in intersubband laser heterostructures / M.V. Kisin, M. Dutta, and M.A. Stroscio -- Quantum dot infrared detectors and sources / P. Bhattacharya ... [et al.] -- Generation of terahertz emission based on intersubband transitions / Q. Hu -- Mid-infrared GaSb-based lasers with Type-I heterointerfaces / D.V. Donetsky, R.U. Martinelli, and G.L. Belenky -- Advances in quantum-dot research and technology: the path to applications in biology / M.A. Stroscio and M. Dutta -- Potential device applications and basic properties. High-field electron transport controlled by optical phonon emission in nitrides / S.M. Komirenko ... [et al.] -- Cooling by inverse Nottingham effect with resonant tunneling / Y. Yu, R.F. Greene, and R. Tsu -- The physics of single electron transistors / M.A. Kastner -- Carrier capture and transport within tunnel injection lasers: a quantum transport analysis / L.F. Register ... [et al.] -- The influence of environmental effects on the acoustic phonon spectra in quantum-dot heterostructures / S. Rufo, M. Dutta, and M.A. Stroscio -- Quantum devices with multipole-electrode - heterojunctions hybrid structures / R. Tsu.
Download or read book Semiconductor Quantum Well Intermixing written by J. T. Lie and published by CRC Press. This book was released on 2000-01-18 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor Quantum Well Intermixing is an international collection of research results dealing with several aspects of the diffused quantum well (DFQW), ranging from Physics to materials and device applications. The material covered is the basic interdiffusion mechanisms of both cation and anion groups as well as the properties of band structure modifiations. Its comprehensive coverage of growth and pos-growth processing technologies along with its presentation of the various interesting and advanced features of the DFQW materials make this book an essential reference to the study of QW layer intermixing.
Download or read book Multi Color Quantum Well Infrared Photodetectors for Mid Long and Very Long Wavelength Infrared Applications written by Sheng S. Li and published by . This book was released on 2002 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum well infrared photodetectors (QWIPs) have been widely investigated for the 3 - 5 micrometers mid-wavelength infrared (MWIR) and 8 - 12 micrometers long-wavelength infrared (LWIR) atmospheric spectral windows as well as very long wavelength infrared (VLWIR: lambda(sub c)> 14 micrometers) detection in the past decade. The mature III-V compound semiconductor growth technology and the design flexibility of device structures have led to the rapid development of various QWIP structures for infrared focal plane arrays (FPAs) applications. In addition to the single-color QWIP with narrow bandwidth, the multi-color QWIP required for advanced IR sensing and imaging applications have also been emerged in recent years. Using band gap engineering approach, the multi-color (2, 3, and 4- color) QWIPs using multi-stack quantum wells with different well width and depth and voltage-tunable triple-coupled quantum well (TCQW) structure for detection in the MWIR, LWIR, and VLWIR bands have been demonstrated. In this paper, the design, fabrication, and characterization of a voltage-tunable 2-stack 3-color QWIP for MW/LW/LW IR detection and a 3-stack 3-color QWIP for detection in the water, ozone, and CO2 atmospheric blocking bands are depicted.
