The use of 3D femtosecond laser printing in the defense and aerospace industries is a relatively new and emerging field that involves the use of 3D printing technology to create highly detailed and complex components and structures using femtosecond lasers. This technology is being used to create a wide range of components and structures, such as sensors, actuators, and structural components, for use in a variety of applications, including defense, aerospace, and space exploration. The use of femtosecond lasers allows for the creation of highly precise and intricate structures, which can improve the performance of defense and aerospace systems. Additionally, 3D femtosecond laser printing can be used to produce large quantities of components and structures quickly and efficiently, making it a valuable tool for defense and aerospace researchers and developers.
3D laser lithography is a suitable technology for the production of high-precision micromechanical components, an example being the single-helix three-turn 3D meso-spring for micro-mechanical applications.
Holes in Hard Metal
Femtosecond laser micro-drilling stands out by its accuracy and minimum heat affected zone. The process is applicable to a wide variety of materials, including different metals, ceramics, polymers, and glass.
A hydrophobic surface formed on a copper alloy sample using femtosecond laser texturing. The contact angle between this surface and a water drop is 150 degrees, which means that the surface has the potential for self-cleaning, anti-icing and other properties linked to hydrophobicity.
Hydrophilic surface properties created through metal surface micro-texturing. A sponge like aluminum surface soaks up water and spreads it evenly across the surface.
Multi-photon polymerization (MPP) enables the production of precise and strong microlenses and microneedles for visualization, filtering, and drug delivery. MPP can also be combined with other fabrication techniques such as selective laser etching to create hybrid microfabricated systems, like glass and polymer structures.
Femtosecond laser texturing can manipulate surface wettability to create hydrophobic or hydrophilic surfaces with applications ranging from medical tool functionalization to fluid separation and friction manipulation.
Microfabrication by multi-photon polymerization is a direct laser-write technique which allows 3D structuring of photopolymers at the micro- and nano-scale.
Multiphoton-polymerization (MPP) is a technology that enables the production of arbitrary shape polymeric structures within submicrometric resolution. First, a photoresist sample is prepared by drop-casting polymer material mixed with a photoinitiator on the glass slide and then pre-baking.
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A feasibility study is composed of several steps, including researching methods for fabricating micro-structures, fabricating a micro-structure prototype, measuring and aligning the prototype with technical requirements, and finally preparing a study report.
3D Manufacturing of Glass Microstructures Using Femtosecond Laser
A. Butkutė, and L. Jonušauskas. Micromachines 2021, 12, 499, (2021). DOI: 10.3390/mi12050499.
Femtosecond lasers: the ultimate tool for high precision 3D manufacturing
L. Jonušauskas, D. Mackevičiūtė, G. Kontenis and V. Purlys. Adv. Opt. Technol., 20190012, ISSN (Online) 2192-8584, (2019). DOI: 10.1515/aot-2019-0012.