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Photopolymerization
...with almost no constraint on geometry or wall thickness. FemtoLux 3 suits this work. It is a compact, low-power fiber laser whose 300 fs pulses are short enough to drive two-photon absorption, so solidification stays inside the focal volume. With 3 W of average power and a repetition rate up...
Black/color marking of metals
...than a coating, it also resists environmental effects. FemtoLux produces those marks on metals such as stainless steel, which suits medical tweezers and similar instruments. Its GHz burst mode gives precise control of the thermal load induced in the sample: the number of pulses in a burst sets the thickness...
Cutting of various metals
Cutting of various metals Femtosecond pulses end before heat can diffuse into the surrounding metal, so metals are cut with no burrs, a minimal heat-affected zone and high precision. Thin metal foils in particular can be given complex shapes and fine features. FemtoLux has been used to cut stainless steel,...
Femtosecond laser formation of grooves in ceramic
...materials like ceramics with high quality and accuracy. FemtoLux was tested in the initial step of ceramic scribing: groove formation. A study compared scribing speeds and quality at the 1030, 515, and 343 nm wavelengths. To estimate the influence of shorter wavelengths, 3 mm long and 50 µm deep grooves...
Femtosecond laser cutting of FZ-Si wafer
...with higher resolution and better processing efficiency than laser sources with longer pulses. A float-zone silicon wafer (FZ-Si (100), 0.4 mm thick) was cut with a FemtoLux laser. Processing quality was high: a low heat-affected zone, no damage on the bottom surface, and curved contours that mechanical dicing cannot follow,...
Heat-sensitive organic material processing
Heat-sensitive organic material processing Organic materials are sensitive to heat: warping and burnt edges appear as soon as the cut zone warms up. Femtosecond pulses are over before significant heat transfers into the material’s lattice, so heat-sensitive organics can be cut accurately and cleanly. A FemtoLux laser was used to...
Nitinol stent cutting
...almost no burr and only a small heat-affected zone. That is the same behavior that makes them suitable for cutting other metals. FemtoLux has been evaluated for cutting nitinol stents, and its pulses are short enough for precise, clean cuts that leave the structure of the stent intact. The parts...
Ceramic processing with GHz burst
...the use of GHz bursts: trains of femtosecond pulses with intra-burst repetition rates in the GHz range. A burst splits a single high-energy pulse into multiple smaller pulses, which makes fuller use of the laser power and increases the processing throughput. FemtoLux with its GHz burst option was used to...
Glass
...quality, with low chipping, no cracking, and a smooth inner hole wall. Glass milling in GHz burst mode Femtosecond milling of glass gives high quality but limited throughput. GHz burst mode on the industrial femtosecond laser FemtoLux splits one high-energy pulse into a train of sub-pulses, and 70 pulses at...
History
...for our outstanding industrial femtosecond laser, the FemtoLux 30. 2023 High-intensity laser system SYLOS 3 was installed at the ELI-ALPS Research Institute (Hungary). Again, we did it in partnership with Light Conversion. 2023 Kęstutis Jasiūnas, long-term CEO of Ekspla, now the chairman of the company board, was awarded the Lifetime...