Optimization Of A Quantum Cascade Laser Operating In The Terahertz Frequency Range Using A Multiobjective Evolutionary Algorithm
DOWNLOAD
Download Optimization Of A Quantum Cascade Laser Operating In The Terahertz Frequency Range Using A Multiobjective Evolutionary Algorithm PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Optimization Of A Quantum Cascade Laser Operating In The Terahertz Frequency Range Using A Multiobjective Evolutionary Algorithm book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Optimization Of A Quantum Cascade Laser Operating In The Terahertz Frequency Range Using A Multiobjective Evolutionary Algorithm
DOWNLOAD
Author : Traci A. Keller
language : en
Publisher:
Release Date : 2004-06-01
Optimization Of A Quantum Cascade Laser Operating In The Terahertz Frequency Range Using A Multiobjective Evolutionary Algorithm written by Traci A. Keller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-01 with Lasers categories.
A quantum cascade (QC) laser is a specific type of semiconductor laser that operates through principles of quantum mechanics. In less than a decade QC lasers are already able to outperform previously designed double heterostructure semiconductor lasers. Because there is a genuine lack of compact and coherent devices which can operate in the far-infrared region the motivation exists for designing a terahertz QC laser. A device operating at this frequency is expected to be more efficient and cost effective than currently existing devices. It has potential applications in the fields of spectroscopy, astronomy, medicine and free-space communication as well as applications to near-space radar and chemical/biological detection. The overarching goal of this research was to find QC laser parameter combinations which can be used to fabricate viable structures. To ensure operation in the THz region the device must conform to the extremely small energy level spacing range from Æ10-15 meV. The time and expense of the design and production process is prohibitive, so an alternative to fabrication was necessary. To accomplish this goal a model of a QC laser, developed at Worchester Polytechnic Institute with sponsorship from the Air Force Research Laboratory Sensors Directorate, and the General Multiobjective Parallel Genetic Algorithm (GenMOP), developed at the Air Force Institute of Technology, were integrated to form a computer simulation which stochastically searches for feasible solutions.
Evolutionary Scheduling
DOWNLOAD
Author : Keshav Dahal
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-02-15
Evolutionary Scheduling written by Keshav Dahal and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-15 with Computers categories.
Evolutionary scheduling is a vital research domain at the interface of artificial intelligence and operational research. This edited book gives an overview of many of the current developments in the large and growing field of evolutionary scheduling. It demonstrates the applicability of evolutionary computational techniques to solve scheduling problems, not only to small-scale test problems, but also fully-fledged real-world problems.
Evolutionary Multi Criterion Optimization
DOWNLOAD
Author : Shigeru Obayashi
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-02-12
Evolutionary Multi Criterion Optimization written by Shigeru Obayashi and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-12 with Computers categories.
This book constitutes the refereed proceedings of the 4th International Conference on Evolutionary Multi-Criterion Optimization, EMO 2007, held in Matsushima, Japan in March 2007. The 65 revised full papers presented together with 4 invited papers are organized in topical sections on algorithm design, algorithm improvements, alternative methods, applications, engineering design, many objectives, objective handling, and performance assessments.
Evolutionary Multi Criterion Optimization
DOWNLOAD
Author : Carlos Coello Coello
language : en
Publisher: Springer
Release Date : 2005-01-28
Evolutionary Multi Criterion Optimization written by Carlos Coello Coello and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-01-28 with Computers categories.
This book constitutes the refereed proceedings of the Third International Conference on Evolutionary Multi-Criterion Optimization, EMO 2005, held in Guanajuato, Mexico, in March 2005. The 59 revised full papers presented together with 2 invited papers and the summary of a tutorial were carefully reviewed and selected from the 115 papers submitted. The papers are organized in topical sections on algorithm improvements, incorporation of preferences, performance analysis and comparison, uncertainty and noise, alternative methods, and applications in a broad variety of fields.
Multi Objective Optimization In Computational Intelligence Theory And Practice
DOWNLOAD
Author : Thu Bui, Lam
language : en
Publisher: IGI Global
Release Date : 2008-05-31
Multi Objective Optimization In Computational Intelligence Theory And Practice written by Thu Bui, Lam and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-05-31 with Technology & Engineering categories.
Multi-objective optimization (MO) is a fast-developing field in computational intelligence research. Giving decision makers more options to choose from using some post-analysis preference information, there are a number of competitive MO techniques with an increasingly large number of MO real-world applications. Multi-Objective Optimization in Computational Intelligence: Theory and Practice explores the theoretical, as well as empirical, performance of MOs on a wide range of optimization issues including combinatorial, real-valued, dynamic, and noisy problems. This book provides scholars, academics, and practitioners with a fundamental, comprehensive collection of research on multi-objective optimization techniques, applications, and practices.
Review Of Progress In Quantitative Nondestructive Evaluation
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2005
Review Of Progress In Quantitative Nondestructive Evaluation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Nondestructive testing categories.
Quantum Cascade Lasers
DOWNLOAD
Author : Jérôme Faist
language : en
Publisher: OUP Oxford
Release Date : 2013-03-14
Quantum Cascade Lasers written by Jérôme Faist and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Technology & Engineering categories.
This book provides an introduction to quantum cascade lasers, including the basic underlying models used to describe the device. It aims at giving a synthetic view of the topic including the aspects of the physics, the technology, and the use of the device. It should also provide a guide for the application engineer to use this device in systems. The book is based on lecture notes of a class given for Masters and beginning PhD students. The idea is to provide an introduction to the new and exciting developments that intersubband transitions have brought to the use of the mid-infrared and terahertz region of the electromagnetic spectrum. The book provides an introductory part to each topic so that it can be used in a self-contained way, while references to the literature will allow deeper studies for further research.
Mid Infrared Emitting Quantum Cascade Lasers On Metamorphic Buffer Layers
DOWNLOAD
Author : Ayushi Rajeev
language : en
Publisher:
Release Date : 2019
Mid Infrared Emitting Quantum Cascade Lasers On Metamorphic Buffer Layers written by Ayushi Rajeev and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
When using conventional substrates, such as InP and GaAs, the materials constituting the superlattice (SL) core region of the quantum cascade laser (QCL) are constrained by strain-induced critical-thickness limitations. Metamorphic buffer layers (MBLs) can serve as "virtual substrates" with a designer-chosen surface lattice constant, thus expanding the compositional-design space for a variety of device structures, including short-wavelength QCLs. An optimized short-wavelength (3.4 [mu]m) single-phonon-resonant (SPR)+ miniband extraction QCL design, grown on an [InxGa1-xAs] MBL, is presented along with the optical and thermal device considerations in play. MBLs can be grown with a variety of graded regions such as linear composition grade from GaAs to [InxGa1-xAs] or by employing dislocation filters between Si substrate and InP. QCL and test superlattices' regrowth on these MBLs with the corresponding materials and device analysis, is presented in this work. In addition to the materials limitation for the design of QCL devices, the requirement to have the constituent layers (1-5 nm) to be precisely controlled in the various compositions and thicknesses, is a challenge. Interfacial grading in strained SLs is studied via atom probe tomography for SLs with various layer thicknesses and relative lattice strains. The tip reconstructions are analyzed by fitting the interfaces to diffusion profiles. Mechanisms possible for the observed interdiffusion profile, such as surface segregation and/or bulk diffusion, are discussed. With an understanding of the compositional gradient at the interfaces, together with optimized QCL designs and regrowth on the MBLs, short-wavelength QCLs with high performances can be achieved
Design And Simulation Of Terahertz Surface Emitting Quantum Cascade Lasers
DOWNLOAD
Author : Martin F. Schubert
language : en
Publisher:
Release Date : 2005
Design And Simulation Of Terahertz Surface Emitting Quantum Cascade Lasers written by Martin F. Schubert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Terahertz Emission By Difference Frequency Generation In Nonlinear Quantum Cascade Lasers
DOWNLOAD
Author : Frederic Demmerle
language : en
Publisher:
Release Date : 2019
Terahertz Emission By Difference Frequency Generation In Nonlinear Quantum Cascade Lasers written by Frederic Demmerle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.