Aberration-controlled Bessel beam processing of glass
| Autor: | Rokas Stonys, Juozas Dudutis, Paulius Gečys, Gediminas Račiukaitis |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Spatial filter business.industry Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Symmetry (physics) 010309 optics Axicon Optical axis Tilt (optics) Optics 0103 physical sciences Bessel beam Perpendicular 0210 nano-technology business Beam (structure) |
| Zdroj: | Optics Express. 26:3627 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.26.003627 |
| Popis: | It is known that Bessel beam generation with a non-ideal axicon induces beam pattern distortions. In this paper, we introduce a simple method for non-ideal axicon-generated Bessel beam reconstruction by tilting the axicon perpendicular to its optical axis. We found an optimum axicon tilt angle where beam distortions can be compensated by inducing additional astigmatic aberrations. At optimal tilt angle, the central spot symmetry and focal depth was increased. By this method we could control crack formation symmetry in the bulk of glass, which is essential for many transparent material processing applications. |
| Databáze: | OpenAIRE |
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