Non-diffraction-length Bessel-beam femtosecond laser drilling of high-aspect-ratio microholes in PMMA
H Wang, F Zhang, K Ding - Optik, 2021 - Elsevier
Bessel beam femtosecond lasers being non-diffractive are well-suited for drilling high aspect
ratio microholes with minor thermal impact. Hereby, the Bessel beams with different non …
ratio microholes with minor thermal impact. Hereby, the Bessel beams with different non …
Cylindrical shockwave-induced compression mechanism in femtosecond laser Bessel pulse micro-drilling of PMMA
Femtosecond (fs) laser Bessel pulses can be employed for high-quality and high-speed
fabrication of high-aspect-ratio uniform microhole arrays. This technique exhibits prominent …
fabrication of high-aspect-ratio uniform microhole arrays. This technique exhibits prominent …
Single-pulse femtosecond laser Bessel beams drilling of high-aspect-ratio microholes based on electron dynamics control
Microholes drilling has attracted extensive research efforts for its broad applications in
photonics, microfluidics, optical fibers and many other fields. A femtosecond (fs) laser is a …
photonics, microfluidics, optical fibers and many other fields. A femtosecond (fs) laser is a …
Temperature effects on the geometry during the formation of micro-holes fabricated by femtosecond laser in PMMA
In this study, the temperature effects on hole geometry of the PMMA during micro-holes
drilling by femtosecond laser has been studied under various pulse energy and number of …
drilling by femtosecond laser has been studied under various pulse energy and number of …
Study of laser beam propagation in microholes and the effect on femtosecond laser micromachining
S Tao, B Wu, S Lei - Journal of Applied Physics, 2011 - pubs.aip.org
In femtosecond (fs) laser micromachining, such as microhole drilling, the hole created by
previous laser pulses may act like a waveguide, whose sidewall may significantly affect the …
previous laser pulses may act like a waveguide, whose sidewall may significantly affect the …
Theoretical and experimental research on a spatially modulated femtosecond bessel-like laser for microdrilling in silica glass
D Kong, X Sun, Y Hu, J Duan - Optics Communications, 2023 - Elsevier
Beam shaping has been widely used in laser processing. Compared with Bessel beam,
Bessel-like beam has unique advantages of fabricating high-aspect-ratio holes due to its …
Bessel-like beam has unique advantages of fabricating high-aspect-ratio holes due to its …
Femtosecond laser high-efficiency drilling of high-aspect-ratio microholes based on free-electron-density adjustments
We studied the micromachining of high-aspect-ratio holes in poly (methylmethacrylate)
using a visible double-pulse femtosecond laser based on free-electron-density adjustments …
using a visible double-pulse femtosecond laser based on free-electron-density adjustments …
High aspect ratio, high-quality microholes in PMMA: a comparison between femtosecond laser drilling in air and in vacuum
Microholes, especially high aspect ratio, high-quality microholes with small diameters (< 100
μm), have broad applications. However, it is very difficult for traditional drilling methods to …
μm), have broad applications. However, it is very difficult for traditional drilling methods to …
A comparative study on high pulse energy femtosecond laser drilling of high-aspect-ratio holes under different pressure conditions
Laser drilling of high-aspect-ratio holes is gradually on the agenda in the field of aerospace
manufacturing. We present a comparative study of high pulse energy femtosecond laser …
manufacturing. We present a comparative study of high pulse energy femtosecond laser …
Parametric study of femtosecond pulses laser hole drilling of silicon wafer
Clark MXR femtosecond (fs) laser micro structuring with pulse duration of 200fs up to a
wavelength of 1030nm with a nominal frequency of 1 KHz on silicon wafer was studied in air …
wavelength of 1030nm with a nominal frequency of 1 KHz on silicon wafer was studied in air …