Laser Beam Shaping, 2nd Edition

11	Axicon Ring Generation Systems
Fred M. Dickey, Carlos López-Mariscal, and Daniel M. Brown

CONTENTS

11.1  Introduction

11.2  The Fundamental Axicon Systems

11.2.1  Radial Focusing

11.2.2  Positive and Negative Axicon Zoom Systems

11.3  Positive Axicon Zoom System

11.4  Positive Axicon System Diffraction Theory

11.5  Numerical Evaluation of the Diffraction Equation

11.6  Continuously Variable Rectangular Line Generator

11.6.1  Theory

11.6.2  Example

11.7  Summary

References

11.1  INTRODUCTION

The production of a ring of light has applications in laser material processing and machining, particle manipulation (optical tweezers), and corneal surgery. It is well known that axicons (conical lenses) can produce light ring patterns. An axicon ...