The Investigation of Electron Acceleration by Intense Laser in Vacuum
|School||South China Normal University|
|Keywords||High Power Laser Relativistic phase slip Electron acceleration Energy gain Vacuum|
This thesis theoretically investigate the feasibility of accelerated electrons in vacuum with strong laser direct its programs , and to draw the necessary conditions of the laser - accelerated electrons , the energy gain of expression was obtained . And brief overview of the development of the accelerator and laser acceleration technology . The article is divided into six chapters : Chapter Preface . The second chapter briefly introduces the development of laser- accelerated electrons . The third chapter describes the vacuum with strong laser to accelerate electronic program proposed and model . Chapter VI introduced himself during graduate work done . The first chapter outlines the development of intense laser matter interaction research areas , and inertial confinement fusion and laser fusion \Described the research background and research purposes . The second chapter , a brief intense laser the envisaged accelerated electrons and accelerator technology development process , pointed out that the scope and focus of this thesis . Chapter to study the feasibility of a strong laser- accelerated electrons in vacuum directly program . Starting from the Maxwell equations (Maxwell) , to deduce the presence of longitudinal electric field of the laser field . , We must break the the Lawson-Woodard (LW) law, and meet certain conditions in order to effectively accelerate electrons and net energy gain . In addition , several laser - accelerated electrons used model . Chapter IV , introduced a vacuum with a single beam of intense laser accelerated electron theory analysis . Hermite - Gaussian ( Hermite -Gaussian ) light field and Bessel (Bessel) light field in the third chapter of the theory based on , for example, to explore and come directly accelerated electrons should satisfy the conditions and the corresponding energy gain. Chapter V , in order to accelerate electrons , often require a high - intensity laser focused Gaussian light field is often used . In this comparative study the specific characteristics of the fundamental mode Gaussian beam and focused Gaussian beam of accelerated electrons in a vacuum . Chapter VI , introduced vacuum using accelerated electron beam cross- intense laser theory analysis . In the front on the basis of theoretical studies , using two beams intersect the beam for accelerating an electric field is obtained directly accelerated electrons should meet the conditions and the corresponding energy gain .