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physics.optics2025
Ablation of black-Si by (Gauss-)Bessel femtosecond laser beams
Nan Zheng, Hsin-Hui Huang, Nguyen Hoai An Le +7
Laser machining and modification of black-Si (b-Si) by femtosecond laser Gaussian (G-) and Gauss-Bessel (GB-) beams are compared at a wavelength of 1030 nm. The GB-beam was generat…
physics.optics2024
Bessel-beam direct-write of the etch-mask in a nano-film of alumina for high-efficiency Si solar cells
Tomas Katkus, Soon Hock Ng, Haoran Mu +14
Large surface area applications such as high-efficiency > 26% solar cells require surface patterning with 1-10 micrometers periodic patterns at high fidelity over 1-10 cm^2 areas (…