1 September 2006 Characteristic analysis of a refractive axicon system for optical trepanning
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An annular beam provides a new laser drilling mechanism, which we refer to as optical trepanning. A refractive axicon system has been designed to transform an input Gaussian laser beam into a collimated annular beam. The diffractive effects of the axicon system and a convex lens focusing the collimated annular beam have been studied using the Fresnel diffraction integral. The theoretical diffraction patterns are compared with the patterns measured with a laser-beam analyzer. The results show that the refractive axicon system can produce Gaussian-like annular beams with the capability of easily adjusting the size of the annular beam.
Danyong Zeng, William Pete Latham, A. Kar, "Characteristic analysis of a refractive axicon system for optical trepanning," Optical Engineering 45(9), 094302 (1 September 2006). https://doi.org/10.1117/1.2353119


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