6 Paraxial Propagation of Gaussian Beams

In tlais chapter we present mathematical models for the propagation of Gaussian beams. Topics covered are:

  • propagation, focal parameters, and focusability behaviors of diverging or converging TEMoo beams
  • ABCD matrix treatment of TEMoo beams propagating through single or multiple optical elements
  • Equations for the electric fields for higher-order Gaussian beams
  • historical evolution and current usage of the M2 beam propagation parameter

6.1 Introduction

Description of light propagation usually reduces to answering the question: with the electric field distribution of light known in some region of space, what is the distribution at other points? The general answer to this question comes from the solution ...

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