Pinghui Wu, Chenghua Sui, and Wenhua Huang, "Theoretical analysis of a quasi-Bessel beam for laser ablation," Photonics Res. 2, 82 (2014)
- Photonics Research
- Vol. 2, Issue 3, 82 (2014)
Fig. 1. Schematic of QBB generation with an axicon.
Fig. 2. Calculated intensity profiles for an ideal axicon illuminated by a Gaussian beam. The inset shows the on-axis intensity along the propagation. Parameters for the calculated are w = 2 mm α = 5 ° n = 1.5 λ = 1064 nm
Fig. 3. Calculated fluence distribution for typical wavelengths for (a) α = 5 ° α = 10 ° z max / 2 w = 2 mm Q = 100 μJ n = 1.5
Fig. 4. Beam diameter versus axicon base angle for typical wavelengths.
Fig. 5. Comparison of the oblate-tip axicon profile with the ideal axicon.
Fig. 6. Comparison of the peak fluence for the ideal axicon (solid line) with the peak fluence for the oblate-tip axicon (dashed line) for input beam radii of (a) 2 mm and (b) 4 mm. Parameters for the calculated are α = 5.6 ° n = 1.5 Q = 1 mJ λ = 1064 nm
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