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Terahertz and Mid Infrared Radiation: Detection of Explosives and CBRN (Using Terahertz)

2014-03-10 Science
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Release : 2014-03-10
Genre : Science
Kind : eBook
Book Rating : 724/5 ( reviews)

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Book Synopsis Terahertz and Mid Infrared Radiation: Detection of Explosives and CBRN (Using Terahertz) by : Mauro F. Pereira

Download or read book Terahertz and Mid Infrared Radiation: Detection of Explosives and CBRN (Using Terahertz) written by Mauro F. Pereira. This book was released on 2014-03-10. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN

2021-04-30 Science
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Release : 2021-04-30
Genre : Science
Kind : eBook
Book Rating : 827/5 ( reviews)

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Book Synopsis Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN by : Mauro Fernandes Pereira

Download or read book Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN written by Mauro Fernandes Pereira. This book was released on 2021-04-30. Available in PDF, EPUB and Kindle. Book excerpt: 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.

THz for CBRN and Explosives Detection and Diagnosis

2017-08-02 Science
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Release : 2017-08-02
Genre : Science
Kind : eBook
Book Rating : 937/5 ( reviews)

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Book Synopsis THz for CBRN and Explosives Detection and Diagnosis by : Mauro F. Pereira

Download or read book THz for CBRN and Explosives Detection and Diagnosis written by Mauro F. Pereira. This book was released on 2017-08-02. Available in PDF, EPUB and Kindle. Book excerpt: This work is intended to jointly address the development, realization and applications of emitters and detectors of terahertz (THz-0.3 THz up to 10 THz) and their application to diagnostics of CBRN effects and detection of explosives and CBRN. Hazardous substances typically exhibit rotational and vibrational transitions in this region, hence giving access to spectroscopic analysis of a large variety of molecules which play a key role in security as well as various other areas, e.g. air pollution, climate research, industrial process control, agriculture, food industry, workplace safety and medical diagnostics can be monitored by sensing and identifying them via THz (0.3 to 10 THz) and mid infrared (MIR-10 THz to 100 THz) absorption “finger prints”. Most plastics, textiles and paper are nearly transparent for THz radiation.

Terahertz and Mid Infrared Radiation

2011-02-27
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Release : 2011-02-27
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Kind : eBook
Book Rating : 702/5 ( reviews)

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Book Synopsis Terahertz and Mid Infrared Radiation by : Mauro F Pereira

Download or read book Terahertz and Mid Infrared Radiation written by Mauro F Pereira. This book was released on 2011-02-27. Available in PDF, EPUB and Kindle. Book excerpt: This book delivers a global picture of the state of the art in TERA-MIR generation, detection and applications, and similar imaging technology. It includes a review of the challenges of turning this technology into affordable commercial devices.

Assessment of Millimeter-Wave and Terahertz Technology for Detection and Identification of Concealed Explosives and Weapons

2007-04-06 Political Science
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Release : 2007-04-06
Genre : Political Science
Kind : eBook
Book Rating : 696/5 ( reviews)

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Book Synopsis Assessment of Millimeter-Wave and Terahertz Technology for Detection and Identification of Concealed Explosives and Weapons by : National Research Council

Download or read book Assessment of Millimeter-Wave and Terahertz Technology for Detection and Identification of Concealed Explosives and Weapons written by National Research Council. This book was released on 2007-04-06. Available in PDF, EPUB and Kindle. Book excerpt: The security of the U.S. commercial aviation system has been a growing concern since the 1970's when the hijacking of aircraft became a serious problem. Over that period, federal aviation officials have been searching for more effective ways for non-invasive screening of passengers, luggage, and cargo to detect concealed explosives and weapons. To assist in this effort, the Transportation Security Administration (TSA) asked the NRC for a study of emerging screening technologies. This report-the third of four-focuses on currently maturing millimeter-wavelength/terahertz imaging and spectroscopy technologies that offer promise in meeting aviation security requirements. The report provides a description of the basic operation of these imaging systems, an assessment of their component technologies, an analysis of various system concepts, and an implementation strategy for deployment of millimeter-wavelength/terahertz technology screening systems.

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