III-Nitride Ultraviolet Emitters

III-Nitride Ultraviolet Emitters
Author: Michael Kneissl
Publisher: Springer
Total Pages: 454
Release: 2015-11-12
Genre: Technology & Engineering
ISBN: 3319241001

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.

Ultraviolet Technology III

Ultraviolet Technology III
Author: Robert E. Huffman
Publisher: SPIE-International Society for Optical Engineering
Total Pages: 384
Release: 1989
Genre: Science
ISBN:

Ultraviolet Light in Food Technology

Ultraviolet Light in Food Technology
Author: Tatiana Koutchma
Publisher: CRC Press
Total Pages: 361
Release: 2019-05-20
Genre: Technology & Engineering
ISBN: 1000649989

UV light is one of a number of emerging non-thermal food processing technologies that can be used in a broad range of applications producing food products with longer shelf-life, more safe, and with higher nutritional quality. The new edition of Ultraviolet Light in Food Technology: Principles and Applications will present recent understanding of the fundamentals of UV light along with new applied knowledge that has accumulated during the 7 years since the first edition published in 2009. The new edition of the book will have 11 chapters including 2 new chapters--on chemical destruction with UV light and food plant safety—along with 6 chapters greatly expanded and updated.

Ultraviolet Laser Technology and Applications

Ultraviolet Laser Technology and Applications
Author: David L. Elliott
Publisher: Academic Press
Total Pages: 367
Release: 2014-06-28
Genre: Science
ISBN: 1483296512

Ultraviolet Laser Technology and Applications is a hands-on reference text that identifies the main areas of UV laser technology; describes how each is applied; offers clearly illustrated examples of UV opticalsystems applications; and includes technical data on optics, lasers, materials, and systems. This book is unique for its comprehensive, in-depth coverage. Each chapter deals with a different aspect of the subject, beginning with UV light itself; moving through the optics, sources, and systems; and concluding with detailed descriptions of applications in various fields. The text enables practicing engineers and researchers to utilize concepts and innovations to solve actual problems encountered in UV optical technology applications. It also offers a wealth of information for equipment designers and manufacturers. Those in laser fields (including medical, electronics, and semiconductors), students, engineers, technicians, as well as newcomers to the subject who require a basic introduction to the topic, will all find Ultraviolet Laser Technology and Applications to be an essential resource. Serves as a valuable, practical reference to UV laser technology Presents detailed technical data and techniques Offers highly illustrated optics designs and beam delivery systems Includes an extensive bibliography, references, and glossary Covers all major UV laser markets and technology systems

Ultraviolet LED Technology for Food Applications

Ultraviolet LED Technology for Food Applications
Author: Tatiana Koutchma
Publisher: Academic Press
Total Pages: 148
Release: 2019-08-10
Genre: Technology & Engineering
ISBN: 0128177950

Ultraviolet LED Technology for Food Applications: From Farms to Kitchens examines the next wave in the LED revolution and its ability to bring numerous advantages of UVC disinfection. As UVC LED-based light fixtures will become the driving force behind wider adoption, with potential use in the treatment of beverages, disinfection of food surfaces, packaging and other food contact and non-contact surfaces, this book presents the latest information, including LEDs unique properties and advantages and the developments and advances made in four areas of application, including produce production and horticulture, post-harvest and post processing storage, safety and point-of-use applications. Alternative opportunities to current practices of food production and processing that are more sophisticated and diverse are being intensively investigated in recent decades, things like Ultraviolet light (UV) irradiation. The effects of UVC LEDs against bacteria, viruses and fungi already have been demonstrated and reported, along with the first applications for disinfection of air, water and surface made for the "point-of-use" integration. - Brings unique advantages of LEDs for foods from farm to kitchens - Explores applications and advances in LEDs for horticulture, crops production, postharvest reservation and produce storage - Investigates UV LEDs in food safety

Ultraviolet Light in Food Technology

Ultraviolet Light in Food Technology
Author: Tatiana Koutchma
Publisher: CRC Press
Total Pages: 300
Release: 2009-03-06
Genre: Science
ISBN: 1420059513

The production of environmentally friendly, sustainable, chemical-free food continues to challenge the food industry, spurring on investigations into alternative food processing techniques that are more sophisticated and diverse than current practices. Exploring one of these emerging solutions, Ultraviolet Light in Food Technology: Principles and Applications incorporates the fundamentals of continuous and pulsed UV light generation and propagation; current food regulations; recommendations for optimal UV reactor design, selection, and validation; information on both commercially available and under-development UV sources; and the outlook for future food applications. After reviewing essential terms, definitions, and current applications, the book emphasizes the need to properly assess the physical and chemical properties in foods that influence the effectiveness of UV treatment and impact inactivation kinetics. It also addresses the effects of UV processing on food quality, before considering the engineering aspects of UV light treatment, such as transport phenomena, process calculations, and continuous-flow reactor geometries. The book then describes the principles of validating UV reactors as well as the principles and applications of UV pulsed light, including microbial inactivation in water, meat, fruits, vegetables, and packaging materials. For anyone working in food research, development, and operations, this resource provides broad, accessible information on the science and applications of UV light technology. It shows how UV light irradiation can be used as a physical preservation method in food processing.

Electromagnetic Technologies in Food Science

Electromagnetic Technologies in Food Science
Author: Vicente M. Gómez-López
Publisher: John Wiley & Sons
Total Pages: 469
Release: 2021-12-13
Genre: Technology & Engineering
ISBN: 111975951X

A comprehensive source of in-depth information provided on existing and emerging food technologies based on the electromagnetic spectrum Electromagnetic Technologies in Food Science examines various methods employed in food applications that are based on the entire electromagnetic (EM) spectrum. Focusing on recent advances and challenges in food science and technology, this is an up-to-date volume that features vital contributions coming from an international panel of experts who have shared both fundamental and advanced knowledge of information on the dosimetry methods, and on potential applications of gamma irradiation, electron beams, X-rays, radio and microwaves, ultraviolet, visible, pulsed light, and more. Organized into four parts, the text begins with an accessible overview of the physics of the electromagnetic spectrum, followed by discussion on the application of the EM spectrum to non-thermal food processing. The physics of infrared radiation, microwaves, and other advanced heating methods are then deliberated in detail—supported by case studies and examples that illustrate a range of both current and potential applications of EM-based methods. The concluding section of the book describes analytical techniques adopted for quality control, such as hyperspectral imaging, infrared and Raman spectroscopy. This authoritative book resource: Covers advanced theoretical knowledge and practical applications on the use of EM spectrum as novel methods in food processing technology Discusses the latest progress in developing quality control methods, thus enabling the control of continuous fast-speed processes Explores future challenges and benefits of employing electromagnetic spectrum in food technology applications Addresses emerging processing technologies related to improving safety, preservation, and overall quality of various food commodities Electromagnetic Technologies in Food Science is an essential reading material for undergraduate and graduate students, researchers, academics, and agri-food professionals working in the area of food preservation, novel food processing techniques and sustainable food production.

Efficient Extreme Ultra-Violet Mirror Design

Efficient Extreme Ultra-Violet Mirror Design
Author: Yen-Min Lee
Publisher: IOP Publishing Limited
Total Pages: 150
Release: 2021-09-23
Genre: Science
ISBN: 9780750326506

Extreme ultraviolet (EUV) lithography is a next generation platform with the potential to extend Moore's Law. The EUV mirror is a fundamental component of this system. Efficient Extreme Ultraviolet Mirror Design describes an approach to designing EUV mirrors with reduced computational time and memory requirements, providing a comprehensive grounding in the fundamentals of the EUV mirror and knowledge of the finite-difference time-domain (FDTD) method. The discussion is made timely by the opening of commercial avenues for the application of EUV as it begins to be implemented in the development of 5G, AI, edge computing, VR and the Internet of Things. This book explores the theory, function and fabrication of EUV mirrors, as well as the correlation between design by Fresnel's equations and design by photonic bands, and develops a rigorous and efficient FDTD method by applying these considerations to three simulation cases. Intended primarily for EUV industry professionals, Efficient Extreme Ultraviolet Mirror Design will be of particular use to researchers investigating large scale problems or near-field scattering problems in EUV lithography. It will serve as an excellent reference text for anyone working in or studying optical engineering, as well as a high-level introduction for researchers from other fields interested in photolithography and the FDTD method. Key Features Addresses knowledge of extreme ultraviolet (EUV) mirrors and EUV lithography. Establishes a relation between photonic bands and Fresnel's equation. Introduces the high reflectivity EUV mirror design rules. Applies numerical simulation for EUV mirror design. Details efficient finite-difference time-domain (FDTD) approach.

Ultraviolet Germicidal Irradiation Handbook

Ultraviolet Germicidal Irradiation Handbook
Author: Wladyslaw Kowalski
Publisher: Springer Science & Business Media
Total Pages: 504
Release: 2010-01-12
Genre: Technology & Engineering
ISBN: 3642019994

This reference covers technical information on ultraviolet germicidal irradiation and its application to air and surface disinfection and the control of pathogens and allergens. Its main focus is airborne microbes and surface contamination applications.

Ultraviolet Light in Water and Wastewater Sanitation (2002)

Ultraviolet Light in Water and Wastewater Sanitation (2002)
Author: Willy J. Masschelein
Publisher: CRC Press
Total Pages: 188
Release: 2017-11-22
Genre: Technology & Engineering
ISBN: 1351355716

Several general books are available on ultraviolet light and its applications. However, this is the first comprehensive monograph that deals with its application to water and wastewater treatment. There is a rapidly growing interest in using UV light in water sanitation due to the increased knowledge of the potential health and environmental impacts of disinfection byproducts. Ultraviolet Light in Water and Wastewater Sanitation integrates the fundamental physics applicable to water and wastewater sanitation, the engineering aspects, and the practical experience in the field. The text analyzes the concerns associated with this application of UV light and brings together comprehensive information on the presently available UV technologies applicable to water and wastewater treatment including: lamp technologies, criteria of evaluation and choice of technology; fundamental principles; performance criteria for disinfection; design criteria and methods; synergistic use of UV and oxidants (advanced oxidation); and functional requirements and potential advantages and drawbacks of the technique. Ultraviolet Light in Water and Wastewater Sanitation is the only treatise currently available combining fundamental knowledge, recommendations for design, evaluations of performance, and future prospects for this application. Water and wastewater treatment professionals, water utility employees, governmental regulators, and chemists will find this book an essential and unique reference for a technology which has received growing regulatory acceptance.