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Two-Photon Polymerization: Additive Manufacturing From the Inside Out

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TOMMASO BALDACCHINI, MATTHEW PRICE AND PHONG DINH, NEWPORT CORP.

The 20th century was an era of revolutionary materials science development, as plastics, semiconductors and biomaterials were introduced, and established materials such as metals and ceramics were significantly upgraded. These new and improved materials ushered in countless applications in industries as diverse as electronics, transportation, energy and health care. In addition to discovering new applications for materials, existing applications can also be improved considerably through better materials. In particular, the desire for lighter or smaller materials — without a...Read full article

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    Published: September 2016
    Glossary
    two-photon polymerization
    Two-photon polymerization (TPP) is a technique used in additive manufacturing, specifically in the field of 3D printing. It involves using a focused laser to polymerize a photosensitive material in a precise and controlled manner. The process relies on the nonlinear absorption of photons, where two photons are absorbed simultaneously to initiate a chemical reaction that leads to polymerization. Here is a breakdown of the key components and steps involved: Photosensitive material: The...
    additive manufacturing
    Additive manufacturing (AM), also known as 3D printing, is a manufacturing process that involves creating three-dimensional objects by adding material layer by layer. This is in contrast to traditional manufacturing methods, which often involve subtracting or forming materials to achieve the desired shape. In additive manufacturing, a digital model of the object is created using computer-aided design (CAD) software, and this digital model is then sliced into thin cross-sectional layers. The...
    polymerization
    Process of synthesizing long molecular chain materials (polymers) by reaction of many small molecules (usually thousands) called monomers.
    fiber lasersmultiphoton absorptionpulsed lasersMKSOphir-Spiriconlaser profilingKevin KirkhamTommaso BaldacchiniMatthew PricePhong DinhindustrialLaserstwo-photon polymerizationTPPultrafast lasersMicrostructuresNewportLaser µFABadditive manufacturingpolymerizationFeatures

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