Title

Annular Beam Analysis Of An Optical Trepanning System

Keywords

Annular beam; Axicon; Diffraction; Geometric optics; Optical trepanning

Abstract

An annular beam provides a new laser drilling mechanism, that we refer to as "optical trepanning". Based on ray tracing techniques, a refractive axicon system has been designed to transform an input Gaussian laser beam into an annular beam with an appropriate irradiance profile. The properties of the resulting annular beam are investigated in this paper. The diffraction patterns were measured, showing that a collimated annular beam can be obtained using a refractive axicon system. However, due to spherical aberration effects, the focused annular beams possess altered irradiance profiles with different focusing lenses. The effects of spherical aberration on the focused annular beam are also investigated.

Publication Date

12-30-2005

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

5876

Number of Pages

1-10

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.619016

Socpus ID

29244466566 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/29244466566

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