At high radiation intensities, multiple photons can be simultaneously absorved by some molecules, creating photochemical reactions proper of short wavelenght interactions like UV photopolymerization, but using long-wavelength laser sources like green or infrared.
Thanks to this principle, a high magnification objective can be used to polymerize only a smal volume called voxel inside a liquid resin withou affectingand by scanning this voxel 3D microstructures can be created with high precision.
what would you print if you could create 3D objects with submicrometer accuracy?. The options are unlimited.
Optics & Photonics:
Micro 3D printing is changing the way we produce and assemble optical systems. Microlenses, diffraction grattings, photonic crystals, beam shaping and optical interconnections, waveguides, photonic circuits, chip to world interfaces and many more.
Life science:
Being able to define structures that are smaller than a single cell enable a complete new world of posibilities for cell studies. Separation membranes, 3D complex microchannels, biomimetic scaffolds and all kind of miniaturized handling tools for cell studies and diagnostics become thinkable with 3D microprinting.
MEMS
TPP brings additive manufacturing into the microscale, being an effective way of producing microparts for miniaturized sensors, actuators and all kind of thinkable mechanisms which hand to hand with the current developments in new materials for printed electronics will open complete unexpected world of smart devices for everyday life. Micronozzles, microneedles, microfluidic structures, microtwizzers, flexural hinges, endoscopic manipulators will come soon to market.
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