Download or read book Hollow Core Photonic Band Gap Fibers for Particle Acceleration written by and published by . This book was released on 2011 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic band gap (PBG) dielectric fibers with hollow cores are being studied both theoretically and experimentally for use as laser driven accelerator structures. The hollow core functions as both a longitudinal waveguide for the transverse-magnetic (TM) accelerating fields and a channel for the charged particles. The dielectric surrounding the core is permeated by a periodic array of smaller holes to confine the mode, forming a photonic crystal fiber in which modes exist in frequency pass-bands, separated by band gaps. The hollow core acts as a defect which breaks the crystal symmetry, and so-called defect, or trapped modes having frequencies in the band gap will only propagate near the defect. We describe the design of 2-D hollow-core PBG fibers to support TM defect modes with high longitudinal fields and high characteristic impedance. Using as-built dimensions of industrially-made fibers, we perform a simulation analysis of the first prototype PBG fibers specifically designed to support speed-of-light TM modes.

Download or read book Measurement of Thermal Dependencies of PBG Fiber Properties written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystal fibers (PCFs) represent a class of optical fibers which have a wide spectrum of applications in the telecom and sensing industries. Currently, the Advanced Accelerator Research Department at SLAC is developing photonic bandgap particle accelerators, which are photonic crystal structures with a central defect used to accelerate electrons and achieve high longitudinal electric fields. Extremely compact and less costly than the traditional accelerators, these structures can support higher accelerating gradients and will open a new era in high energy physics as well as other fields of science. Based on direct laser acceleration in dielectric materials, the so called photonic band gap accelerators will benefit from mature laser and semiconductor industries. One of the key elements to direct laser acceleration in hollow core PCFs, is maintaining thermal and structural stability. Previous simulations demonstrate that accelerating modes are sensitive to the geometry of the defect region and the variations in the effective index. Unlike the telecom modes (for which over 95% of the energy propagates in the hollow core) most of the power of these modes is located in the glass at the periphery of the central hole which has a higher thermal constant than air ([gamma]{sub SiO{sub 2}} = 1.19 x 10−6 1/K, [gamma]{sub air} = -9 x 10−7 1/K with [gamma] = dn/dT). To fully control laser driven acceleration, we need to evaluate the thermal and structural consequences of such modes on the PCFs. We are conducting series of interferometric tests to quantify the dependencies of the HC-633-02 (NKT Photonics) propagation constant (k{sub z}) on temperature, vibration amplitude, stress and electric field strength. In this paper we will present the theoretical principles characterizing the thermal behavior of a PCF, the measurements realized for the fundamental telecom mode (TE00), and the experimental demonstration of TM-like mode propagation in the HC-633-02 fiber.

Download or read book The Nature of Accelerating Modes in PBG Fibers written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Transverse magnetic (TM) modes with phase velocities at or just below the speed of light, c, are intended to accelerate relativistic particles in hollow-core, photonic band gap (PBG) fibers. These are so-called 'surface defect modes', being lattice modes perturbed by the defect to have their frequencies shifted into the band gap, and they can have any phase velocity. PBG fibers also support so-called 'core defect modes' which are characterized as having phase velocities always greater than c and never cross the light line. In this paper we explore the nature of these two classes of accelerating modes and compare their properties.

Download or read book Hollow Core Optical Fbers written by Walter Belardi and published by MDPI. This book was released on 2019-07-29 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Hollow core optical fibers that was published in Fibers

Download or read book Fiber Accelerating Structures written by and published by . This book was released on 2010 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the options for future particle accelerators are photonic band gap (PBG) fiber accelerators. PBG fibers are specially designed optical fibers that use lasers to excite an electric field that is used to accelerate electrons. To improve PBG accelerators, the basic parameters of the fiber were tested to maximize defect size and acceleration. Using the program CUDOS, several accelerating modes were found that maximized these parameters for several wavelengths. The design of multiple defects, similar to having closely bound fibers, was studied to find possible coupling or the change of modes. The amount of coupling was found to be dependent on distance separated. For certain distances accelerating coupled modes were found and examined. In addition, several non-periodic fiber structures were examined using CUDOS. The non-periodic fibers produced several interesting results and promised more modes given time to study them in more detail.

Download or read book Experiment to Detect Accelerating Modes in a Photonic Bandgap Fiber written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental effort is currently underway at the E-163 test beamline at Stanford Linear Accelerator Center to use a hollow-core photonic bandgap (PBG) fiber as a high-gradient laser-based accelerating structure for electron bunches. For the initial stage of this experiment, a 50pC, 60 MeV electron beam will be coupled into the fiber core and the excited modes will be detected using a spectrograph to resolve their frequency signatures in the wakefield radiation generated by the beam. They will describe the experimental plan and recent simulation studies of candidate fibers.

Download or read book 18th Advanced ICFA Beam Dynamics Workshop on Quantum Aspects of Beam Physics written by Pisin Chen and published by World Scientific. This book was released on 2002 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of working group C. Introduction and summary of working group C: part I / J.S.T. Ng -- Contributed papers. Is there emmitted radiation in the Unruh effect? / B.L. Hu and A. Raval -- Fermilab A0 channeling program / R.A. Carrigan, Jr. [and others] -- Integral characteristics of bremsstrahlung and pair photoproduction in a medium / V.N. Baier and V.M. Katkov -- The Coulomb corrections to e+e- pair production in ultrarelativistic heavy-ion collisions / R.N. Lee -- Spin depolarization due to beam-beam interaction in linear colliders / K.A. Thompson -- Gravitational Čerenkov radiation and scalar stars / S. Capozziello, G. Lambiase and D.F. Torres -- D. Quantum methodologies in beam physics. Plenary papers. Supersymmetry and beam dynamics / J.D. Bjorken and P. Chen -- Landau damping in nonlinear Schrödinger equations / R. Fedele [and others] -- Summary of working group D. Quantum methodology in beam physics / A. Dragt and M. Pusterla -- Contributed papers. Controlled stochastic collective dynamics of particle beams in the stability regime / C. Petroni [and others] -- Quantum mechanical formalism of particle beam optics / S.A. Khan -- Localized coherent structures and patterns formation in collective models of beam motion / A. Fedorova and M. Zeitlin -- Quasiclassical calculations for Wigner functions via multiresolution / A. Fedorova and M. Zeitlin -- Single-particle quantum dynamics in a magnetic lattice / M. Venturini and R.D. Ruth -- Quantum-like approach to beam dynamics - application to the LHC and HIDIF projects / M. Pusterla -- Quantum mechanics of Dirac particle beam optics: single-particle theory / R. Jaganathan -- Quantum models in beam physics and signal analysis / M. Manko -- Radiative corrections in symmetrized classical electrodynamics / J.R. Van Meter [and others] -- Beyond Unruh effect: nonequilibrium quantum dynamics of moving charges / B.L. Hu and P.R. Johnson.

Download or read book Special Purpose Modes in Photonic Band Gap Fibers written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic band gap fibers are described having one or more defects suitable for the acceleration of electrons or other charged particles. Methods and devices are described for exciting special purpose modes in the defects including laser coupling schemes as well as various fiber designs and components for facilitating excitation of desired modes. Results are also presented showing effects on modes due to modes in other defects within the fiber and due to the proximity of defects to the fiber edge. Techniques and devices are described for controlling electrons within the defect(s). Various applications for electrons or other energetic charged particles produced by such photonic band gap fibers are also described.

Download or read book Advanced Accelerator Concepts written by Manoel Conde and published by American Institute of Physics. This book was released on 2006-12-13 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Geneva, Wisconsin, 10 - 15 July 2006

Download or read book Electron and Photon Confinement in Semiconductor Nanostructures written by Benoît Deveaud and published by IOS Press. This book was released on 2003 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this course was to give an overview of the physics of artificial semiconductor structures confining electrons and photons. It furnishes the background for several applications in particular in the domain of optical devices, lasers, light emitting diodes or photonic crystals. The effects related to the microactivity polaritons, which are mixed electromagnetic radiation-exciton states inside a semiconconductor microactivity are covered. The study of the characteristics of such states shows strong relations with the domain of cavity quantum electrodynamics and thus with the investigation of some fundamental theoretical concepts.

Download or read book Dekker Encyclopedia of Nanoscience and Nanotechnology written by James A. Schwarz and published by CRC Press. This book was released on 2004 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Resolution Manufacturing from 2D to 3D 4D Printing written by Simone Luigi Marasso and published by Springer Nature. This book was released on 2022-10-14 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive presentation of the most frequently used high resolution manufacturing techniques available, as well as the polymeric materials used for each of the techniques. Divided into two parts covering the technologies and materials used and the impact on different research fields and case studies, High Resolution Manufacturing from 2D to 3D/4D Printing: Applications in Engineering and Medicine addresses issues like throughput improvement by volumetric 3D printing and presenting novel applications and case studies. In addition, this book also covers the latest breakthrough developments and innovations to help readers understand the future applications of this technology across various disciplines, including biomedicine, electronics, energy, and photonics.

Download or read book Production Characterization and Acceleration of Optical Microbunches written by Christopher M. S. Sears and published by . This book was released on 2008 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Accelerator Concepts written by Vitaly Yakimenko and published by American Inst. of Physics. This book was released on 2004-12-14 with total page 1056 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings cover new developments for a number of the most advanced methods for acceleration of heavy ions, protons, electrons and positrons.

Download or read book Springer Handbook of Lasers and Optics written by Frank Träger and published by Springer Science & Business Media. This book was released on 2012-05-05 with total page 1704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition features numerous updates and additions. Especially 4 new chapters on Fiber Optics, Integrated Optics, Frequency Combs and Interferometry reflect the changes since the first edition. In addition, major complete updates for the chapters: Optical Materials and Their Properties, Optical Detectors, Nanooptics, and Optics far Beyond the Diffraction Limit. Features Contains over 1000 two-color illustrations. Includes over 120 comprehensive tables with properties of optical materials and light sources. Emphasizes physical concepts over extensive mathematical derivations. Chapters with summaries, detailed index Delivers a wealth of up-to-date references.

Download or read book Fundamentals of Photonics written by Bahaa E. A. Saleh and published by John Wiley & Sons. This book was released on 2019-02-27 with total page 1520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Photonics A complete, thoroughly updated, full-color third edition Fundamentals of Photonics, Third Edition is a self-contained and up-to-date introductory-level textbook that thoroughly surveys this rapidly expanding area of engineering and applied physics. Featuring a blend of theory and applications, coverage includes detailed accounts of the primary theories of light, including ray optics, wave optics, electromagnetic optics, and photon optics, as well as the interaction of light and matter. Presented at increasing levels of complexity, preliminary sections build toward more advanced topics, such as Fourier optics and holography, photonic-crystal optics, guided-wave and fiber optics, LEDs and lasers, acousto-optic and electro-optic devices, nonlinear optical devices, ultrafast optics, optical interconnects and switches, and optical fiber communications. The third edition features an entirely new chapter on the optics of metals and plasmonic devices. Each chapter contains highlighted equations, exercises, problems, summaries, and selected reading lists. Examples of real systems are included to emphasize the concepts governing applications of current interest. Each of the twenty-four chapters of the second edition has been thoroughly updated.

Download or read book Characterisation of Hollow core Photonic Bandgap Fibres and Other Multimode Fibres for Optical Communications written by Nicholas Heng Loong Wong and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: