Semiconductor Terahertz Technology

Author: Enrique Garcia-Munoz
Editor: John Wiley & Sons
ISBN: 1118920422
File Size: 78,75 MB
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Key advances in Semiconductor Terahertz (THz) Technology now promises important new applications enabling scientists and engineers to overcome the challenges of accessing the so–called terahertz gap . This pioneering reference explains the fundamental methods and surveys innovative techniques in the generation, detection and processing of THz waves with solid–state devices, as well as illustrating their potential applications in security and telecommunications, among other fields. With contributions from leading experts, Semiconductor Terahertz Technology: Devices and Systems at Room Temperature Operation comprehensively and systematically covers semiconductor–based room temperature operating sources such as photomixers, THz antennas, radiation concepts and THz propagation as well as room–temperature operating THz detectors. The second part of the book focuses on applications such as the latest photonic and electronic THz systems as well as emerging THz technologies including: whispering gallery resonators, liquid crystals, metamaterials and graphene–based devices. This book will provide support for practicing researchers and professionals and will be an indispensable reference to graduate students in the field of THz technology. Key features: Includes crucial theoretical background sections to photomixers, photoconductive switches and electronic THz generation & detection. Provides an extensive overview of semiconductor–based THz sources and applications. Discusses vital technologies for affordable THz applications. Supports teaching and studying increasingly popular courses on semiconductor THz technology.

Terahertz Sources And Systems

Author: Robert Miles
Editor: Springer Science & Business Media
ISBN: 9780792370970
File Size: 42,44 MB
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Proceedings of the NATO Advanced Research Workshop, Château de Bonas, France, 22-27 June 2000

Handbook Of Terahertz Technology For Imaging Sensing And Communications

Author: D Saeedkia
Editor: Elsevier
ISBN: 0857096494
File Size: 30,66 MB
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The recent development of easy-to-use sources and detectors of terahertz radiation has enabled growth in applications of terahertz (Thz) imaging and sensing. This vastly adaptable technology offers great potential across a wide range of areas, and the Handbook of terahertz technology for imaging, sensing and communications explores the fundamental principles, important developments and key applications emerging in this exciting field. Part one provides an authoritative introduction to the fundamentals of terahertz technology for imaging, sensing and communications. The generation, detection and emission of waves are discussed alongside fundamental aspects of surface plasmon polaritons, terahertz near-field imaging and sensing, room temperature terahertz detectors and terahertz wireless communications. Part two goes on to discuss recent progress and such novel techniques in terahertz technology as terahertz bio-sensing, array imagers, and resonant field enhancement of terahertz waves. Fiber-coupled time-domain spectroscopy systems (THz-TDS), terahertz photomixer systems, terahertz nanotechnology, frequency metrology and semiconductor material development for terahertz applications are all reviewed. Finally, applications of terahertz technology are explored in part three, including applications in tomographic imaging and material spectroscopy, art conservation, and the aerospace, wood products, semiconductor and pharmaceutical industries. With its distinguished editor and international team of expert contributors, the Handbook of terahertz technology for imaging, sensing and communications is an authoritative guide to the field for laser engineers, manufacturers of sensing devices and imaging equipment, security companies, the military, professionals working in process monitoring, and academics interested in this field. Examines techniques for the generation and detection of terahertz waves Discusses material development for terahertz applications Explores applications in tomographic imaging, art conservation and the pharmaceutical and aerospace industries

Terahertz Technology

Author: Ali Rostami
Editor: Springer Science & Business Media
ISBN: 9783642157936
File Size: 24,99 MB
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The book presents information about Terahertz science, Terahertz photodetectors and Terahertz Lasers. A special emphasis is given to room temperature operation of long wavelength photodetectors based on novel quantum dots (Centered Defect Spherical Quantum Dots). Moreover, a complete analysis of systems based on Quantum Cascade structures to detect far infrared wavelengths is provided. Finally, the book presents Terahertz laser principles considering multi-color lasers in this range of wavelengths. Written as a background for graduate students in the Optics field.

Terahertz Spectroscopy

Author: Jamal Uddin
Editor: BoD – Books on Demand
ISBN: 9535130315
File Size: 40,51 MB
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The terahertz regime of the electromagnetic spectrum was largely unexplored due to the lack of technology needed to generate and detect the radiation. However, in the last couple of decades, there has been a dramatic increase in tools needed to harness the radiation. This remarkable progress made in the development of terahertz sources, components, and detectors has resulted in an ever-increasing inquisitiveness of the applications of terahertz technology in a wide range of fields including medicine, pharmaceuticals, security, sensing, and quality assurance. This book, Terahertz Spectroscopy - A Cutting Edge Technology, presents an overview of the recent advances in terahertz technology and their application in a vast array of fields. The scientists and students are encouraged to read and share the content of this volume. The book also provides a good starting point for researchers who are new to the terahertz regime. The various chapters of the book have been written by renowned scientists in different parts of the world who are at the forefront of terahertz research fields. It is our (InTech publisher, editor, and authors) hope that this book will enhance knowledge and stimulate more interest and future research in terahertz technology.

Principles Of Terahertz Science And Technology

Author: Yun-Shik Lee
Editor: Springer Science & Business Media
ISBN: 0387095403
File Size: 55,79 MB
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Principles of Terahertz Science and Technology aims to elucidate the fundamentals of THz technology and science for potential new users. It surveys major techniques of generating, detecting, and manipulating THz waves and also discusses a number of essential processes where THz waves interact with physical, chemical, and biological systems. This book serves as an introduction to THz technology for new researchers in various fields. Many different disciplines, such as ultrafast spectroscopy, semiconductor device fabrication, bio-medical imaging and more, involve the recent development of THz technology. It is necessary to lay down a strong, common foundation among researchers, so that communication can proceed smoothly. Previous THz research activities have concentrated on generation and detection, but the focus has now shifted to practical applications of this technology, such as high-speed optoelectronic signal processing and molecular spectroscopy. Drawing upon years of practical experience and using numerous examples and illustrative applications Yun-Shik Lee discusses: The major techniques of generating, detecting, and manipulating THz waves Essential processes where THz waves interact with physical, chemical, and biological systems Medical Applications of T-Ray Imaging including, optical properties of human tissue, cancer diagnostics, reflective imaging of skin burns and detection of dental caries Principles of Terahertz Science and Technology is an ideal book for applied physicists, microwave engineers, biomedical engineers, electrical engineers, and analytical chemists interested in the fundamentals and applications of THz engineering.

Physics Of Semiconductor Devices

Author: Vikram Kumar
Editor: SPIE-International Society for Optical Engineering
ISBN:
File Size: 26,45 MB
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Emerging Trends In Terahertz Solid State Physics And Devices

Author: Arindam Biswas
Editor: Springer Nature
ISBN: 9811532354
File Size: 40,58 MB
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This book highlights recent advances and applications in terahertz (THz) technology, addressing advanced topics such as THz biomedical imaging, pattern recognition and tomographic reconstruction for THz biomedical imaging by machine learning and artificial intelligence, THz imaging radars for autonomous vehicle applications, and THz imaging systems for security and surveillance. It also discusses theoretical, experimental, established and validated empirical work on these topics.

Infrared To Terahertz Technologies For Health And The Environment

Author: Alexey A. Belyanin
Editor: Society of Photo Optical
ISBN:
File Size: 58,76 MB
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Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.

Interaction Of Terahertz Radiation With Semiconductor Lasers

Author: Jared Ombiro Gwaro
Editor: Cuvillier
ISBN: 9783736970373
File Size: 29,32 MB
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Terahertz (THz) technology bears great potential in spectroscopy, imaging, material science, security screening and high-speed wireless communication. However, the generation of intensive, directional THz radiation has been difficult and the THz frequency range has long been considered the last final frontier of the electromagnetic spectrum. Recent advancement in optoelectronic terahertz generation techniques and high power electronic sources has helped to bridge the THz gap and has opened up a wealth of new applications for THz technology. However, there is still a major technical limitation in developing THz systems for mass markets, mainly due to the cost of THz hardware components including sources and detectors. In this regard, we investigated the use of semiconductor diode lasers as THz detectors as well as excitation sources for photomixers for THz generation. For THz detection, we investigated the interaction of semiconductor lasers with THz radiation. Intense THz radiation from different sources and at various frequencies was injected into the laser diode. The laser diode was operated in Littman configuration to ensure clean single mode operation in the near infrared. The charge carrier system in the semiconductor was expected to interact with the injected THz radiation and introduce nonlinear frequency mixing. This nonlinear mixing was to induce sidebands in the near infrared optical spectra and was to be analyzed with an optical spectrum analyzer. This may lead to the demonstration of a simple, cost effective and compact room temperature THz spectrometer since the distance between the emission line and the sidebands equals the incident THz frequency. Unfortunatly, due to unprecedented challenges the interaction of THz radiation with diode laser experiment was not successful.

Terahertz Sensing Technology Emerging Scientific Applications Novel Device Concepts

Author: Dwight L. Woolard
Editor: World Scientific
ISBN: 9812386114
File Size: 25,82 MB
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The last research frontier in high frequency electronics lies in the so-called terahertz (or submillimeter wave) regime, between the traditional microwave and the infrared domains. Significant scientific and technical challenges within the terahertz (THz) frequency regime have recently motivated an array of new research activities. During the last few years, major research programs have emerged that are focused on advancing the state of the art in THz frequency electronic technology and on investigating novel applications of THz frequency sensing. This book provides a detailed review of the new THz frequency technological developments that are emerging across a wide spectrum of sensing and technology areas.Volume II presents cutting edge results in two primary areas: (1) research that is attempting to establish THz-frequency sensing as a new characterization tool for chemical, biological and semiconductor materials, and (2) theoretical and experimental efforts to define new device concepts within the ?THz gap?.

Ingaas Diodes Using Integrated Technology For Low Noise Millimeter Terahertz Receivers

Author: Phil Francis Marsh
Editor:
ISBN:
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Surface Plasmon Polaritons At Terahertz Frequencies On Metal And Semiconductor Surfaces

Author: Jörg Saxler
Editor: GRIN Verlag
ISBN: 3638019810
File Size: 44,62 MB
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Diploma Thesis from the year 2003 in the subject Electrotechnology, grade: 1.0, RWTH Aachen University (Institut für Halbleitertechnik), 46 entries in the bibliography, language: English, abstract: This thesis presents the first experimental study of the propagation characteristics and field distribution of surface plasmon polaritons (SPPs) at terahertz (THz) frequencies. A measurement setup has been designed which allows the generation, demonstration and systematic investigation of SPPs at flat surfaces of various materials. In this chapter a general introduction is given which comprises the different concepts that are involved in the presented experiments. After giving a general introduction to electromagnetic interface excitations in section 1.1, a qualitative account of the SPP is found in 1.2. In section 1.3 we discuss the peculiarity of the THz frequency range in which experiments have been carried out, followed by the conceptual formulation of this thesis, including a short summary of the subsequent chapters (section 1.4).

Terahertz And Mid Infrared Radiation

Author: Mauro Pereira
Editor: Springer Science & Business Media
ISBN: 9400707681
File Size: 71,76 MB
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Terahertz (THz) and Mid-Infrared (MIR) radiation (TERA-MIR) can be transmitted through nearly any material without causing biological harm. Novel and rapid methods of detection can be created with devices operation in these spectral ranges allowing scanning for weapons, detecting hidden explosives (including plastic landmines), controlling the quality of food and a host of other exciting applications. This book focuses on mathematical and physical aspects of the field, on unifying these two spectral domains (THz and MIR) with regard to common sources, detectors, materials and applications, and on key interdisciplinary topics. The main THz and MIR source is the quantum cascade laser (QCL). Thus significant attention is paid to the challenge of turning this advanced technology into affordable commercial devices so as to exploit its enormous potential. However other alternatives to THz QCLs are also presented, e.g. sub-terahertz imaging from avalanching GaAs bipolar transistors, Josephson junctions as THz sources, semiconductor materials for pulsed THz sources, superconducting THz electronics with Josephson vortices. In summary this book delivers a global picture of the state of the art in TERA-MIR generation, detection and applications.

Terahertz Science And Technology For Military And Security Applications

Author: Dwight L. Woolard
Editor: World Scientific
ISBN: 9812771808
File Size: 74,93 MB
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The inherent advantages and potential payoffs of the terahertz (THz) regime for military and security applications serve as an important driver for interest in new THz-related science and technology. In particular, the very rapid growth in more recent years is arguably most closely linked to the potential payoffs of THz sensing and imaging (THz-S&I). This book presents some of the leading fundamental research efforts towards the realization of practical THz-S&I capabilities for military and security applications. Relevant subjects include theoretical prediction and/or measurement of THz spectroscopic phenomenon in solid-state materials such as high explosives (e.g. HMX, PETN, RDX, TNT, etc.), carbon-fiber composites, biological agents (e.g. DNA, RNA, proteins, amino acids) and organic-semiconductor nanostructures. Individual papers also address the effective utilization of state-of-the-art THz-frequency technology in military and security relevant scenarios such as standoff S&I, screening of packages and personnel, and perimeter defense. Technical papers introduce novel devices and/or concepts that enhance THz source and detector performance, enabling completely new types of sensor functionality at THz frequency (e.g. detection at nanoscale/molecular levels), and defining new and innovative sensing modalities (e.g. remote personnel identification) for defense and security. Therefore, the collective research presented here represents a valuable source of information on the evolving field of THz-S&I for military and security applications. Sample Chapter(s). Foreword (106 KB). Chapter 1: Development of Computational Methodologies for the Prediction and Analysis of Solid-State Terahertz Spectra (1,347 KB). Contents: Fire Damage on Carbon Fiber Materials Characterized by THz Waves (N Karpowicz et al.); Fingerprinting Insulins in the Spectral Region from Mid-IR to THz (R Song et al.); Ambient Air Used as the Nonlinear Media for THz Wave Generation (X Xie et al.); Time Domain Terahertz Imaging of Threats in Luggage and Personnel (D Zimdars et al.); Designed Self-Organization for Molecular Optoelectronic Sensors (M Norton); An Optically-Triggered I-RTD Hybrid THz Oscillator Design (D Woolard et al.); New Technique to Suppress Sidelobe Clutter in Perimeter Security Systems (G W Webb et al.); Remote Identification of Foreign Subjects (A Sokolnikov); and other papers. Readership: University researchers in electrical engineering, physics, chemistry, biology; students and small business efforts in high-frequency electronics and sensors; as a supplement for graduate courses.

Intense Terahertz Excitation Of Semiconductors

Author: Sergey Ganichev
Editor: Oxford University Press on Demand
ISBN: 0198528302
File Size: 79,25 MB
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This work presents the first comprehensive treatment of high-power terahertz applications to semiconductors and low-dimensional semiconductor structures. Terahertz properties of semiconductors are in the centre of scientific activities because of the need of high-speed electronics.

Terahertz Biomedical And Healthcare Technologies

Author: Amit Banerjee
Editor: Elsevier
ISBN: 0128185570
File Size: 77,85 MB
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Terahertz Biomedical and Healthcare Technologies: Materials to Devices reviews emerging advances in terahertz biomedical and healthcare technologies, including advances in fundamental materials science research, device design and fabrication, applications, and challenges and opportunities for improved performance. In addition, the improvement of materials, optical elements, and measuring techniques are also explored. Other sections cover the design and development of wide bandgap semiconductors for terahertz device applications, including their physics, device modeling, characterization and fabrication concepts. Finally, the book touches on potential defense, medical imaging, internet of things, and the machine learning applications of terahertz technologies. Reviews the latest advances in the fundamental and applied research of terahertz technologies, covering key topics in materials science, biomedical engineering and healthcare informatics Includes applications of terahertz technologies in medical imaging, diagnosis and treatment Provides readers with an understanding of the machine learning, pattern recognition, and data analytics research utilized to enhance the effectiveness of terahertz technologies

Thz And Security Applications

Author: Carlo Corsi
Editor: Springer
ISBN: 9401788286
File Size: 42,74 MB
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These proceedings comprise invited papers from highly experienced researchers in THz technology and security applications. THz detection of explosives represents one of the most appealing technologies to have recently emerged in dealing with terrorist attacks encountered by civil security and military forces throughout the world. Discussed are the most advanced technologies and developments, the various points of operational strength and weaknesses as well as are suggestions and predictions the best technological solutions to overcome current operational limits. The current status of various levels of cooling in THz detectors, sources and associated electronics are also addressed. The goal was to provide a clear view on the current technologies available and the required advances needed in order to achieve more efficient systems. This goal was outlined in part by establishing the baseline of current uncertainty estimations in physics-based modelling and the identification of key areas which require additional research and development.

Novel In Plane Semiconductor Lasers Iii

Author: Claire F. Gmachl
Editor: Society of Photo Optical
ISBN:
File Size: 22,84 MB
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Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.

Advanced Semiconductor Devices

Author:
Editor: World Scientific
ISBN: 9812708588
File Size: 64,74 MB
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Annotation. The Proceedings cover five emerging areas of advanced device technology: wide band gap devices, terahertz and millimeter waves, nanometer silicon and silicongermanium devices, nanoelectronics and ballistic devices, and characterization of advanced photonic and electronic devices. The papers by leading researchers in high speed and advanced electronic and photonic technology presented many "first" and break-through results, as has become a tradition with the Lester Eastman Conference and will allow readers to get up-to-date information about emerging trends and future directions of these technologies. Key papers in each section present snap-shot and mini reviews of the state-of-the art and of "hot off the press" results making the book to be required reading for engineers, scientists, and students working on advanced and high speed device technology. Book jacket.