Terahertz And Mid Infrared Radiation
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Terahertz and Mid Infrared Radiation
Author | : Mauro Pereira,Oleksiy Shulika |
Publsiher | : Springer Science & Business Media |
Total Pages | : 218 |
Release | : 2011-02-26 |
Genre | : Science |
ISBN | : 9789400707689 |
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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 and Mid Infrared Radiation Detection of Explosives and CBRN Using Terahertz
Author | : Mauro F. Pereira,Oleksiy Shulika |
Publsiher | : Springer |
Total Pages | : 196 |
Release | : 2014-03-10 |
Genre | : Science |
ISBN | : 9789401785723 |
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The reader will find here a timely update on new THz sources and detection schemes as well as concrete applications to the detection of Explosives and CBRN. Included is a method to identify hidden RDX-based explosives (pure and plastic ones) in the frequency domain study by Fourier Transformation, which has been complemented by the demonstration of improvement of the quality of the images captured commercially available THz passive cameras. The presented examples show large potential for the detection of small hidden objects at long distances (6-10 m). Complementing the results in the short-wavelength range, laser spectroscopy with a mid-infrared, room temperature, continuous wave, DFB laser diode and high performance DFB QCL have been demonstrated to offer excellent enabling sensor technologies for environmental monitoring, medical diagnostics, industrial and security applications. From the new source point of view a number of systems have been presented - From superconductors to semiconductors, e.g. Detection of Terahertz Waves from Superconducting Bi2Sr2CaCu2O8+δ Intrinsic Josephson Junctions. The quest for a compact room temperature THz source and the recent advances in high power mid-IR QCLs lead to the development of a semiconductor THz source based on intracavity difference frequency generation. Furthermore, alternative electrically pumped THz sources based on the high emission efficiency predicted for polaritonic states in the ultra-strong coupling regime led to the demonstration of electroluminescent devices. Finally, antipolaritons in dispersive media were discussed and different aspects of the interaction of THz radiation with biomatter were presented.
2009 International Workshop Terahertz and Mid Infrared Radiation
Author | : IEEE Staff,Institute of Electrical and Electronics Engineers |
Publsiher | : Unknown |
Total Pages | : 135 |
Release | : 2009 |
Genre | : Fields, Waves & Electromagnetics |
ISBN | : 1424438489 |
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Terahertz THz Mid Infrared MIR and Near Infrared NIR Technologies for Protection of Critical Infrastructures Against Explosives and CBRN
Author | : Mauro Fernandes Pereira,Apostolos Apostolakis |
Publsiher | : Springer Nature |
Total Pages | : 290 |
Release | : 2021-04-30 |
Genre | : Science |
ISBN | : 9789402420821 |
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Critical infrastructures are targets for terrorism and deliver a valuable vector through which the proliferation of CBRN and explosive precursors can be detected. Recent technological breakthroughs, notably in the field of near infrared (NIR), mid infrared (MIR), Terahertz (THz) and Gigahertz (GHz) sources and detectors, have led to rugged commercial devices, capable of standoff sensing a range of these dangerous substances. However, at the same time criminal and terrorist organizations have also benefited from the availability of technologies to increase the threat they pose to the security of citizens and a concerted effort is needed to improve early detection measures to identify activities, such as the production of homemade explosives or CBRN that can be potentially dangerous to society. The key global technological bottleneck to be overcome is the current lack of integration and networking of mature detection technology into early warning systems for critical infrastructures. Thus, this book brings together complementary information connecting the research of leading teams working on critical Infrastructure protection with academic developers and industrial producers of state of the art sensors.
Mid Infrared and Terahertz Quantum Cascade Lasers
Author | : Dan Botez,Mikhail A. Belkin |
Publsiher | : Cambridge University Press |
Total Pages | : 551 |
Release | : 2023-06-30 |
Genre | : Science |
ISBN | : 9781108427937 |
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A state-of-the-art overview of this rapidly expanding field, featuring fundamental theory, practical applications, and real-life examples.
Sensing with Terahertz Radiation
Author | : Daniel Mittleman |
Publsiher | : Springer |
Total Pages | : 351 |
Release | : 2013-02-26 |
Genre | : Science |
ISBN | : 9783540456018 |
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The purpose of this book is two-fold. First, the various different methods of accessing the THz range are discussed, with a view to convince the reader that there have been qualitative and significant improvements over older, more conventional techniques. The text makes it clear that these improvements enable practical "real-world" applications of THz technology, in a manner which would not have been possible before. Second, the demonstrations and feasibility tests described serve as compelling evidence of the utility of such devices. Due to the unique characteristics of THz radiation and its interaction with materials, these devices have substantial advantages over other competing technologies in a number of different areas.
Terahertz Technology
Author | : Ali Rostami,Hassan Rasooli,Hamed Baghban |
Publsiher | : Springer Science & Business Media |
Total Pages | : 256 |
Release | : 2010-11-25 |
Genre | : Technology & Engineering |
ISBN | : 9783642157936 |
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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.
Introduction to THz Wave Photonics
Author | : Xi-Cheng Zhang,Jingzhou Xu |
Publsiher | : Springer Science & Business Media |
Total Pages | : 246 |
Release | : 2009-12-01 |
Genre | : Technology & Engineering |
ISBN | : 9781441909787 |
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Terahertz (THz) radiation, which is electromagnetic radiation in a frequency int- val from 0.3 to 10 THz (1 mm–30 ?m wavelength), is the next frontier in science and technology. This band occupies a large portion of the electromagnetic sp- trum between the infrared and microwave bands. Basic research, new initiatives, and developments in advanced sensing and imaging technology with regard to the THz band remain unexplored compared to the relatively well-developed science and technology in the microwave and optical frequencies. Historically, THz technologies were used mainly within the astronomy c- munity for studying the background of cosmic far-infrared radiation, and by the laser-fusion community for the diagnostics of plasmas. Since the ?rst demonstration of THz wave time-domain spectroscopy in the late 1980s, there has been a series of signi?cant advances (particularly in recent years) as more intense THz sources and higher sensitivity detectors provide new opportunities for understanding the basic science in the THz frequency range.