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Introduction

  • H. P. Freund
  • T. M. AntonsenJr.
Chapter

Abstract

The basic concepts underlying the free-electron laser are presented including the resonance condition, the amplification process, gain and saturation efficiency, and electron beam quality requirements. The fundamental configurations such as master oscillator power amplifiers (MOPAs), oscillators and regenerative amplifiers (RAFELs), optical klystrons and high-gain harmonic generation (HGHG), and self-amplified spontaneous emission (SASE) are introduced. While all current free-electron lasers operate in the classical regime, the condition under which quantum mechanical effects become important is discussed. Finally, a discussion of the history and current status of free-electron laser experiments, facilities, and potential applications is given.

Keywords

Resonance Gain Efficiency Master Oscillator Power Amplifiers MOPA Self-Amplified Spontaneous Emission SASE Optical klystron High-Gain Harmonic Generation HGHG Oscillator 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • H. P. Freund
    • 1
  • T. M. AntonsenJr.
    • 2
  1. 1.University of Maryland, University of New MexicoViennaUSA
  2. 2.University of MarylandPotomacUSA

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