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Terahertz Free Electroni Laser Optical Design And Simulation
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Book Synopsis Terahertz Free-electroni Laser Optical Design and Simulation by : Aaron A. Zimmer
Download or read book Terahertz Free-electroni Laser Optical Design and Simulation written by Aaron A. Zimmer and published by . This book was released on 2010 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Free Electron Laser (FEL) provides a versatile method for producing laser light. Traditionally, FELs are complicated in design and occupy large research facilities. The primary goal of this thesis is to investigate a particular FEL design that is small in size and operates in the terahertz (THz) frequency regime. The optics materials requirements are explored for power levels ranging from mW to kW. Additionally, as part of a simpler design and in spite of the large amount of diffraction present at THz wavelengths, a waveguide will not be utilized as others have done previously. Laser beam clipping, which is defined as the absorption of the laser beam at the outer edges of the diffracted mode, and a shortened undulator are investigated as methods to support the elimination of the waveguide.
Book Synopsis Introduction to Simulations of Semiconductor Lasers by : Marek Wartak
Download or read book Introduction to Simulations of Semiconductor Lasers written by Marek Wartak and published by CRC Press. This book was released on 2024-03-21 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulations play an increasingly important role not only in scientific research but also in engineering developments. Introduction to Simulations of Semiconductor Lasers introduces senior undergraduates to the design of semiconductor lasers and their simulations. The book begins with explaining the physics and fundamental characteristics behind semiconductor lasers and their applications. It presumes little prior knowledge, such that only a familiarity with the basics of electromagnetism and quantum mechanics is required. The book transitions from textbook explanations, equations, and formulas to ready-to-run numeric codes that enable the visualization of concepts and simulation studies. Multiple chapters are supported by MATLAB code which can be accessed by the students. These are ready-to-run, but they can be modified to simulate other structures if desired. Providing a unified treatment of the fundamental principles and physics of semiconductors and semiconductor lasers, Introduction to Simulations of Semiconductor Lasers is an accessible, practical guide for advanced undergraduate students of Physics, particularly for courses in laser physics. Key Features: A unified treatment of fundamental principles Explanations of the fundamental physics of semiconductor Explanations of the operation of semiconductor lasers An historical overview of the subject
Book Synopsis Multimode Simulations of Free Electron Lasers by : Joseph Blau
Download or read book Multimode Simulations of Free Electron Lasers written by Joseph Blau and published by . This book was released on 2002-03-01 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of theoretical research on Free Electron Lasers (FELs) are presented. Basic FEL physics is reviewed, using a previously developed classical theory. Numerical simulations based on this theory are described, and numerous examples show how they have been used to increase understanding of existing FELs and to help plan new experiments. Single-mode simulations that follow the evolution of a single-frequency plane wave provide insight into important physical effects in FELs. Results show how these simulations are used to evaluate new FEL designs such as inverse-tapered and step-tapered undulators. Longitudinal multimode simulations model plane waves using finite-length electron and optical pulses. These simulations are used to study coherence evolution in various FEL designs, and to explain effects such as limit-cycle behavior. Transverse multimode simulations that allow for the finite transverse dimensions of the optical wavefronts include the effects of optical mode distortion. These simulations are currently being used to design short Rayleigh length optical cavities that are less sensitive to mirror damage. Four- dimensional simulations are also described, which follow the optical wavefront in x, y, z, and t, including the effects of multiple longitudinal and transverse modes. These simulations are computationally intensive, but may play an important role in the design of future high-power FELs.
Book Synopsis Optoelectronic Integrated Circuit Design and Device Modeling by : Jianjun Gao
Download or read book Optoelectronic Integrated Circuit Design and Device Modeling written by Jianjun Gao and published by John Wiley & Sons. This book was released on 2011-09-19 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Optoelectronic Integrated Circuit Design and Device Modeling, Professor Jianjun Gao introduces the fundamentals and modeling techniques of optoelectronic devices used in high-speed optical transmission systems. Gao covers electronic circuit elements such as FET, HBT, MOSFET, as well as design techniques for advanced optical transmitter and receiver front-end circuits. The book includes an overview of optical communication systems and computer-aided optoelectronic IC design before going over the basic concept of laser diodes. This is followed by modeling and parameter extraction techniques of lasers and photodiodes. Gao covers high-speed electronic semiconductor devices, optical transmitter design, and optical receiver design in the final three chapters. Addresses a gap within the rapidly growing area of transmitter and receiver modeling in OEICs Explains diode physics before device modeling, helping readers understand their equivalent circuit models Provides comprehensive explanations for E/O and O/E conversions done with laser and photodiodes Covers an extensive range of devices for high-speed applications Accessible for students new to microwaves Presentation slides available for instructor use This book is primarily aimed at practicing engineers, researchers, and post-graduates in the areas of RF, microwaves, IC design, photonics and lasers, and solid state devices. The book is also a strong supplement for senior undergraduates taking courses in RF and microwaves. Lecture materials for instructors available at www.wiley.com/go/gao
Book Synopsis Start-to-end Simulation of a Smith-Purcell Free Electron Laser by :
Download or read book Start-to-end Simulation of a Smith-Purcell Free Electron Laser written by and published by . This book was released on 2010 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terahertz (THz) radiation has generated much recent interest due to its ability to penetrate deep into many organic materials without the damage associated with ionizing radiations. Smith-Purcell free-electron lasers (SPFELs) offer a viable path toward generating copious amounts of narrow-band THz radiation. In this paper we present numerical simulations, performed with the conformal finite-difference time-domain electromagnetic solver VORPAL of a SPFEL operating in the superradiant regime. We first explore the standard (single grating) configuration and investigate the impact of incoming beamparameters. We also present a new concept based a double grating configuration to efficiently bunch the electron beam, followed by a single grating to produce super-radiant SP radiation.
Book Synopsis Comprehensive Semiconductor Science and Technology by :
Download or read book Comprehensive Semiconductor Science and Technology written by and published by Newnes. This book was released on 2011-01-28 with total page 3572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductors are at the heart of modern living. Almost everything we do, be it work, travel, communication, or entertainment, all depend on some feature of semiconductor technology. Comprehensive Semiconductor Science and Technology, Six Volume Set captures the breadth of this important field, and presents it in a single source to the large audience who study, make, and exploit semiconductors. Previous attempts at this achievement have been abbreviated, and have omitted important topics. Written and Edited by a truly international team of experts, this work delivers an objective yet cohesive global review of the semiconductor world. The work is divided into three sections. The first section is concerned with the fundamental physics of semiconductors, showing how the electronic features and the lattice dynamics change drastically when systems vary from bulk to a low-dimensional structure and further to a nanometer size. Throughout this section there is an emphasis on the full understanding of the underlying physics. The second section deals largely with the transformation of the conceptual framework of solid state physics into devices and systems which require the growth of extremely high purity, nearly defect-free bulk and epitaxial materials. The last section is devoted to exploitation of the knowledge described in the previous sections to highlight the spectrum of devices we see all around us. Provides a comprehensive global picture of the semiconductor world Each of the work's three sections presents a complete description of one aspect of the whole Written and Edited by a truly international team of experts
Book Synopsis Principles of Free Electron Lasers by : Henry P. Freund
Download or read book Principles of Free Electron Lasers written by Henry P. Freund and published by Springer Nature. This book was released on 2023-09-19 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive description of the physics of free-electron lasers starting from the fundamentals and proceeding through detailed derivations of the equations describing electron trajectories, and spontaneous and stimulated emission. Linear and nonlinear analyses are described, as are detailed explanations of the nonlinear simulation of a variety of configurations including amplifiers, oscillators, self-amplified spontaneous emission, high-gain harmonic generation, and optical klystrons. Theory and simulation are anchored using comprehensive comparisons with a wide variety of experiments.
Book Synopsis Design and Analysis of an Electron Gun/booster and Free Electron Laser Optical Analysis by : Sean P. Niles
Download or read book Design and Analysis of an Electron Gun/booster and Free Electron Laser Optical Analysis written by Sean P. Niles and published by . This book was released on 2010 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: As interest in high power free electron lasers (FELs) has increased, the FEL and accelerator communities have been faced with the need to develop high bunch charge, high repetition rate, low emittance electron sources for use as the driving accelerators for FELs. A novel superconducting, radio-frequency (SRF) gun/booster has been designed by and built for the Naval Postgraduate School (NPS) FEL Beam Physics Lab in collaboration with Niowave, Inc., for studying this electron source regime. The NPS SRF gun/booster operates at 500 MHz and is based upon a quarter-wave structure. It incorporates many features that make it desirable for studying the cathodes and transport regimes necessary to explore high bunch charge beams, including adjustable field focusing, short transport out of the gun, and the ability to change cathode types and materials. After attaining "first beam" in June 2010, the NPS gun has been established as the first SRF electron gun in the United States. Initial results show excellent agreement with simulation with bunch charges of 110 pC and transverse emittance estimates of 4 mm-mrad. Additionally, a modal analysis tool for the NPS FEL simulation software is developed based upon the Hermite-Gaussian basis set. Using a minimization of mode coefficients approach, we decompose output optical fields for amplifier FEL designs and experiments for FEL optimization and comparison of laser output fields.
Book Synopsis Principles of Free Electron Lasers by : H. P. Freund
Download or read book Principles of Free Electron Lasers written by H. P. Freund and published by Springer. This book was released on 2018-04-25 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive description of the physics of free-electron lasers starting from the fundamentals and proceeding through detailed derivations of the equations describing electron trajectories, and spontaneous and stimulated emission. Linear and nonlinear analyses are described, as are detailed explanations of the nonlinear simulation of a variety of configurations including amplifiers, oscillators, self-amplified spontaneous emission, high-gain harmonic generation, and optical klystrons. Theory and simulation are anchored using comprehensive comparisons with a wide variety of experiments.
Book Synopsis Free Space Optical Communication by : A. Arockia Bazil Raj
Download or read book Free Space Optical Communication written by A. Arockia Bazil Raj and published by Walter de Gruyter GmbH & Co KG. This book was released on 2015-12-18 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress in ICT has exceeded our expectations for meeting the requirement of multimedia society in the 21st century. The FSOC is considered to be one of the key technologies for realizing very high speed multi GbPs large-capacity terrestrial and aerospace communications. In FSOC, the optical beam propagation in the turbulent atmosphere is severely affected by various factors suspended in the channel. Wavefront aberration correcting with continuous beam alignment are the key requirements for a successful installation of an FSOC system which are the main contributions in our book. Establishment of FSOC setups, development of accurate weather station, measurement of atmospheric attenuation (Att) and turbulence strength (Cn2), development of new models to predict the Att and Cn2, design of Response Surface Model and Artificial Neural Network based on controller, implementation of neural-controller in FPGA and attaining the BER of 6.4x10^-9 during different outdoor environments. All the original contributions, newness, findings and experimental results etc., are reported in the book. Subject of work; Wireless Optical Communication. The content of the book can be referred by various application designers and/or academicians for working on FSOC transceiver design, laser cutting, laser metrology, laser surgery, beam focusing & pointing, beacon positioning and coupling etc. Further, all necessary MATLAB and VHDL codes are also given on appropriate pages for the readers' quick/ clear understanding.
Book Synopsis Simulations of the High Average Power Selene Free Electron Laser Prototype by : Dennis D. Quick
Download or read book Simulations of the High Average Power Selene Free Electron Laser Prototype written by Dennis D. Quick and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Free electron laser (FEL) technology continues to advance, providing alternative solutions to existing and potential problems. The capabilities of an FEL with respect to tunability, power and efficiency make it an attractive choice when moving into new laser utilization fields. The initial design parameters, for any new system, offer a good base to begin system simulation tests in an effort to determine the best possible design. This is a study of the Novosibirsk design which is a prototype for the proposed SELENE FEL. The design uses a three-section, low-power optical klystron followed by a single-pass, high-power radiator. This system is inherently sensitive to electron beam quality, but affords flexibility in achieving the final design. The performance of the system is studied using the initial parameters. An FEL, configured as a simple, two section optical klystron is studied to determine the basic operating characteristics of a high current FEL klystron.
Book Synopsis Handbook of Optoelectronic Device Modeling and Simulation by : Joachim Piprek
Download or read book Handbook of Optoelectronic Device Modeling and Simulation written by Joachim Piprek and published by CRC Press. This book was released on 2017-10-12 with total page 887 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive survey of fundamental concepts and methods for optoelectronic device modeling and simulation. Gives a broad overview of concepts with concise explanations illustrated by real results. Compares different levels of modeling, from simple analytical models to complex numerical models. Discusses practical methods of model validation. Includes an overview of numerical techniques.
Book Synopsis Handbook of Optical Wireless Communication by : Xizheng Ke
Download or read book Handbook of Optical Wireless Communication written by Xizheng Ke and published by Springer Nature. This book was released on with total page 1881 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulations of a Compact Terahertz Smith-Purcell Free Electron Laser by :
Download or read book Numerical Simulations of a Compact Terahertz Smith-Purcell Free Electron Laser written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Laser Technology and Applications by : Chunlei Guo
Download or read book Handbook of Laser Technology and Applications written by Chunlei Guo and published by CRC Press. This book was released on 2021-06-23 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive handbook gives a fully updated guide to lasers and laser systems, including the complete range of their technical applications. The first volume outlines the fundamental components of lasers, their properties and working principles. The second volume gives exhaustive coverage of all major categories of lasers, from solid-state and semiconductor diode to fiber, waveguide, gas, chemical, and dye lasers. The third volume covers modern applications in engineering and technology, including all new and updated case studies spanning telecommunications and data storage to medicine, optical measurement, defense and security, nanomaterials processing and characterization.
Book Synopsis Simulation and Design Methods for Free-electron Laser Systems by : Robert A. Neuerman
Download or read book Simulation and Design Methods for Free-electron Laser Systems written by Robert A. Neuerman and published by . This book was released on 2009 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling and simulation have proven invaluable to the design of various systems and planning of many experiments since the free-electron laser was invented in the 1970s. This thesis illustrates methods used for these tasks and for the validation and development of further theory. FEL systems and their components are described, briefly discussing how they fit into design considerations. Basic theory of FEL operation is reviewed, including the resonance condition, FEL wave and pendulum equations, and the concepts of undulator taper, extraction and beam quality. Two computer programs used for FEL simulation (FEL3D/FEL4D, developed at the Naval Postgraduate School, and Ginger, developed at Lawrence Berkeley National Laboratory) are discussed and compared, then applied to specific FEL cases. The cases studied serve to evaluate key performance characteristics of FELs. The final case study directly compares output from the two programs. In addition to this type of physics simulation, computer tools are also vital for component design. Relevant methods are illustrated using the example of an electrostatic cathode test cell and drawings made using the Los Alamos National Laboratories design tool, Poisson Superfish. After reviewing the principles involved and system constraints, a new test cell is designed for use with future NPS experiments. The effects of anodecathode spacing and anode aperture size are examined for two different anode configurations and recommendations are made for future design iterations.
Book Synopsis Optical Modeling of Induction-linac Driven Free-electron Lasers by :
Download or read book Optical Modeling of Induction-linac Driven Free-electron Lasers written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The free-electron laser (FEL) simulation code FRED, developed at Lawrence Livermore National Laboratory (LLNL) primarily to model single-pass FEL amplifiers driven by induction linear accelerators, is described. The main emphasis is on the modeling of optical propagation in the laser and on the differences between the requirements for modeling rf-linac-driven vs. induction-linac-driven FELs. Examples of optical guiding and mode cleanup are presented for a 50 .mu.m FEL.
